diff --git a/applications/solvers/incompressible/adjointShapeOptimizationFoam/Make/files b/applications/solvers/incompressible/adjointShapeOptimisationFoam/Make/files
similarity index 61%
rename from applications/solvers/incompressible/adjointShapeOptimizationFoam/Make/files
rename to applications/solvers/incompressible/adjointShapeOptimisationFoam/Make/files
index d42156d410..455d6af1db 100644
--- a/applications/solvers/incompressible/adjointShapeOptimizationFoam/Make/files
+++ b/applications/solvers/incompressible/adjointShapeOptimisationFoam/Make/files
@@ -1,5 +1,5 @@
 adjointOutletPressure/adjointOutletPressureFvPatchScalarField.C
 adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.C
-adjointShapeOptimizationFoam.C
+adjointShapeOptimisationFoam.C
 
-EXE = $(FOAM_APPBIN)/adjointShapeOptimizationFoam
+EXE = $(FOAM_APPBIN)/adjointShapeOptimisationFoam
diff --git a/applications/solvers/incompressible/adjointShapeOptimizationFoam/Make/options b/applications/solvers/incompressible/adjointShapeOptimisationFoam/Make/options
similarity index 100%
rename from applications/solvers/incompressible/adjointShapeOptimizationFoam/Make/options
rename to applications/solvers/incompressible/adjointShapeOptimisationFoam/Make/options
diff --git a/applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointContinuityErrs.H b/applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointContinuityErrs.H
similarity index 96%
rename from applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointContinuityErrs.H
rename to applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointContinuityErrs.H
index 3852b2ad97..8ca043cc72 100644
--- a/applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointContinuityErrs.H
+++ b/applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointContinuityErrs.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
diff --git a/applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointOutletPressure/adjointOutletPressureFvPatchScalarField.C b/applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointOutletPressure/adjointOutletPressureFvPatchScalarField.C
similarity index 98%
rename from applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointOutletPressure/adjointOutletPressureFvPatchScalarField.C
rename to applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointOutletPressure/adjointOutletPressureFvPatchScalarField.C
index 1eb28e81a2..22d97bc719 100644
--- a/applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointOutletPressure/adjointOutletPressureFvPatchScalarField.C
+++ b/applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointOutletPressure/adjointOutletPressureFvPatchScalarField.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
diff --git a/applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointOutletPressure/adjointOutletPressureFvPatchScalarField.H b/applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointOutletPressure/adjointOutletPressureFvPatchScalarField.H
similarity index 98%
rename from applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointOutletPressure/adjointOutletPressureFvPatchScalarField.H
rename to applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointOutletPressure/adjointOutletPressureFvPatchScalarField.H
index b62f002470..ef27c34b07 100644
--- a/applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointOutletPressure/adjointOutletPressureFvPatchScalarField.H
+++ b/applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointOutletPressure/adjointOutletPressureFvPatchScalarField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
diff --git a/applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.C b/applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.C
similarity index 98%
rename from applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.C
rename to applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.C
index d22db41465..587542c2f9 100644
--- a/applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.C
+++ b/applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
diff --git a/applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.H b/applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.H
similarity index 98%
rename from applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.H
rename to applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.H
index 683e5aa455..be373b8617 100644
--- a/applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.H
+++ b/applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointOutletVelocity/adjointOutletVelocityFvPatchVectorField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
diff --git a/applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointShapeOptimizationFoam.C b/applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointShapeOptimisationFoam.C
similarity index 99%
rename from applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointShapeOptimizationFoam.C
rename to applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointShapeOptimisationFoam.C
index 475cb12fcf..47cfcce01c 100644
--- a/applications/solvers/incompressible/adjointShapeOptimizationFoam/adjointShapeOptimizationFoam.C
+++ b/applications/solvers/incompressible/adjointShapeOptimisationFoam/adjointShapeOptimisationFoam.C
@@ -22,7 +22,7 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Application
-    adjointShapeOptimizationFoam
+    adjointShapeOptimisationFoam
 
 Description
     Steady-state solver for incompressible, turbulent flow of non-Newtonian
@@ -31,7 +31,7 @@ Description
 
     References:
     \verbatim
-        "Implementation of a continuous adjoint for topology optimization of
+        "Implementation of a continuous adjoint for topology optimisation of
          ducted flows"
         C. Othmer,
         E. de Villiers,
diff --git a/applications/solvers/incompressible/adjointShapeOptimizationFoam/createFields.H b/applications/solvers/incompressible/adjointShapeOptimisationFoam/createFields.H
similarity index 100%
rename from applications/solvers/incompressible/adjointShapeOptimizationFoam/createFields.H
rename to applications/solvers/incompressible/adjointShapeOptimisationFoam/createFields.H
diff --git a/applications/solvers/incompressible/adjointShapeOptimizationFoam/createPhia.H b/applications/solvers/incompressible/adjointShapeOptimisationFoam/createPhia.H
similarity index 96%
rename from applications/solvers/incompressible/adjointShapeOptimizationFoam/createPhia.H
rename to applications/solvers/incompressible/adjointShapeOptimisationFoam/createPhia.H
index 1ad902f6bb..21a5bf7976 100644
--- a/applications/solvers/incompressible/adjointShapeOptimizationFoam/createPhia.H
+++ b/applications/solvers/incompressible/adjointShapeOptimisationFoam/createPhia.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
diff --git a/applications/solvers/incompressible/adjointShapeOptimizationFoam/initAdjointContinuityErrs.H b/applications/solvers/incompressible/adjointShapeOptimisationFoam/initAdjointContinuityErrs.H
similarity index 96%
rename from applications/solvers/incompressible/adjointShapeOptimizationFoam/initAdjointContinuityErrs.H
rename to applications/solvers/incompressible/adjointShapeOptimisationFoam/initAdjointContinuityErrs.H
index 0c445fa1f8..f6819cb791 100644
--- a/applications/solvers/incompressible/adjointShapeOptimizationFoam/initAdjointContinuityErrs.H
+++ b/applications/solvers/incompressible/adjointShapeOptimisationFoam/initAdjointContinuityErrs.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/functionObjects/sizeDistribution/sizeDistribution.C b/applications/solvers/multiphase/multiphaseEulerFoam/functionObjects/sizeDistribution/sizeDistribution.C
index 543e6fe954..2db5149e9f 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/functionObjects/sizeDistribution/sizeDistribution.C
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/functionObjects/sizeDistribution/sizeDistribution.C
@@ -250,7 +250,7 @@ void Foam::functionObjects::sizeDistribution::writeDistribution()
 
     }
 
-    if (normalize_)
+    if (normalise_)
     {
         if(sum(result) != 0)
         {
@@ -460,7 +460,7 @@ bool Foam::functionObjects::sizeDistribution::read(const dictionary& dict)
 {
     fvMeshFunctionObject::read(dict);
 
-    normalize_ = dict.lookupOrDefault<Switch>("normalize", false);
+    normalise_ = dict.lookupOrDefault<Switch>("normalise", false);
     densityFunction_ = dict.lookupOrDefault<Switch>("densityFunction", false);
     geometric_ = dict.lookupOrDefault<Switch>("geometric", false);
     maxOrder_ = dict.lookupOrDefault("maxOrder", 3);
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/functionObjects/sizeDistribution/sizeDistribution.H b/applications/solvers/multiphase/multiphaseEulerFoam/functionObjects/sizeDistribution/sizeDistribution.H
index 744bcdd12c..682e4287d3 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/functionObjects/sizeDistribution/sizeDistribution.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/functionObjects/sizeDistribution/sizeDistribution.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2017-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2017-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -57,7 +57,7 @@ Usage
         populationBalance | corresponding populationBalance | yes |
         functionType | number/volume/moments/stdDev | yes   |
         coordinateType | used for density/moment calculation | yes |
-        normalize    | normalize concentrations  | no       | no
+        normalise    | normalise concentrations  | no       | no
         densityFunction | compute densityFunction | no      | no
         logBased     | use log of coordinate for density | no | no
         maxOrder     | maxim order of moment output | no    | 3
@@ -155,8 +155,8 @@ protected:
         //- List of volume-averaged diameters
         scalarField d_;
 
-        //- Normalize number/volume concentrations
-        Switch normalize_;
+        //- Normalise number/volume concentrations
+        Switch normalise_;
 
         //- Determines whether density function is calculated
         Switch densityFunction_;
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/Ergun/Ergun.H b/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/Ergun/Ergun.H
index cdd11c1b01..51f5af3301 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/Ergun/Ergun.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/Ergun/Ergun.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -29,7 +29,7 @@ Description
     Reference:
     \verbatim
         Enwald, H., Peirano, E., & Almstedt, A. E. (1996).
-        Eulerian two-phase flow theory applied to fluidization.
+        Eulerian two-phase flow theory applied to fluidisation.
         International Journal of Multiphase Flow, 22, 21-66.
     \endverbatim
 
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/Gibilaro/Gibilaro.H b/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/Gibilaro/Gibilaro.H
index d7e1467f72..8d3742985a 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/Gibilaro/Gibilaro.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/Gibilaro/Gibilaro.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -29,7 +29,7 @@ Description
     Reference:
     \verbatim
         Enwald, H., Peirano, E., & Almstedt, A. E. (1996).
-        Eulerian two-phase flow theory applied to fluidization.
+        Eulerian two-phase flow theory applied to fluidisation.
         International Journal of Multiphase Flow, 22, 21-66.
         Eq. 106, p. 43.
     \endverbatim
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/GidaspowErgunWenYu/GidaspowErgunWenYu.H b/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/GidaspowErgunWenYu/GidaspowErgunWenYu.H
index e140c89867..46d085caa8 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/GidaspowErgunWenYu/GidaspowErgunWenYu.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/GidaspowErgunWenYu/GidaspowErgunWenYu.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -30,7 +30,7 @@ Description
     Reference:
     \verbatim
         Gidaspow, D. (1994).
-        Multiphase flow and fluidization: continuum and kinetic theory
+        Multiphase flow and fluidisation: continuum and kinetic theory
         descriptions.
         Academic press, New York.
     \endverbatim
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/GidaspowSchillerNaumann/GidaspowSchillerNaumann.H b/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/GidaspowSchillerNaumann/GidaspowSchillerNaumann.H
index bd648300cd..5fd4c9ff12 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/GidaspowSchillerNaumann/GidaspowSchillerNaumann.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/GidaspowSchillerNaumann/GidaspowSchillerNaumann.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -30,13 +30,13 @@ Description
     References:
     \verbatim
         Enwald, H., Peirano, E., & Almstedt, A. E. (1996).
-        Eulerian two-phase flow theory applied to fluidization.
+        Eulerian two-phase flow theory applied to fluidisation.
         International Journal of Multiphase Flow, 22, 21-66.
 
         This is identical to the Wen and Yu, Rowe model Table 3.6 p.56  in
         van Wachem, B. G. M. (2000).
         Derivation, implementation, and validation of computer simulation models
-        for gas-solid fluidized beds.
+        for gas-solid fluidised beds.
         PhD Thesis, TU Delft.
     \endverbatim
 
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/WenYu/WenYu.H b/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/WenYu/WenYu.H
index 1f90a8f833..a974769a44 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/WenYu/WenYu.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/dragModels/WenYu/WenYu.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -30,7 +30,7 @@ Description
     Reference:
     \verbatim
         Enwald, H., Peirano, E., & Almstedt, A. E. (1996).
-        Eulerian two-phase flow theory applied to fluidization.
+        Eulerian two-phase flow theory applied to fluidisation.
         International Journal of Multiphase Flow, 22, 21-66.
         Eq. 86-87, p. 40.
     \endverbatim
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/heatTransferModels/Gunn/Gunn.H b/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/heatTransferModels/Gunn/Gunn.H
index b5c11c2727..304f13fabd 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/heatTransferModels/Gunn/Gunn.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/interfacialModels/heatTransferModels/Gunn/Gunn.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2019-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2019-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::heatTransferModels::Gunn
 
 Description
-    Gunn (1978) correlation for fixed and fluidized beds with Re < 10^5
+    Gunn (1978) correlation for fixed and fluidised beds with Re < 10^5
     and continuous phase fraction between 0.35 and 1.
 
     Reference:
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/multiphaseCompressibleMomentumTransportModels/derivedFvPatchFields/JohnsonJacksonParticleSlip/JohnsonJacksonParticleSlipFvPatchVectorField.H b/applications/solvers/multiphase/multiphaseEulerFoam/multiphaseCompressibleMomentumTransportModels/derivedFvPatchFields/JohnsonJacksonParticleSlip/JohnsonJacksonParticleSlipFvPatchVectorField.H
index dd68ce2bb6..ba019f06f1 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/multiphaseCompressibleMomentumTransportModels/derivedFvPatchFields/JohnsonJacksonParticleSlip/JohnsonJacksonParticleSlipFvPatchVectorField.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/multiphaseCompressibleMomentumTransportModels/derivedFvPatchFields/JohnsonJacksonParticleSlip/JohnsonJacksonParticleSlipFvPatchVectorField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -31,7 +31,7 @@ Description
     \verbatim
         Reuge, N., Cadoret, L., Coufort-Saudejaud, C., Pannala, S., Syamlal, M.,
         & Caussat, B. (2008).
-        Multifluid Eulerian modeling of dense gas–solids fluidized bed
+        Multifluid Eulerian modeling of dense gas–solids fluidised bed
         hydrodynamics: influence of the dissipation parameters.
         Chemical Engineering Science, 63(22), 5540-5551.
     \endverbatim
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/multiphaseCompressibleMomentumTransportModels/derivedFvPatchFields/JohnsonJacksonParticleTheta/JohnsonJacksonParticleThetaFvPatchScalarField.H b/applications/solvers/multiphase/multiphaseEulerFoam/multiphaseCompressibleMomentumTransportModels/derivedFvPatchFields/JohnsonJacksonParticleTheta/JohnsonJacksonParticleThetaFvPatchScalarField.H
index 05c961e5ae..91800ea4a7 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/multiphaseCompressibleMomentumTransportModels/derivedFvPatchFields/JohnsonJacksonParticleTheta/JohnsonJacksonParticleThetaFvPatchScalarField.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/multiphaseCompressibleMomentumTransportModels/derivedFvPatchFields/JohnsonJacksonParticleTheta/JohnsonJacksonParticleThetaFvPatchScalarField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -31,7 +31,7 @@ Description
     \verbatim
         Reuge, N., Cadoret, L., Coufort-Saudejaud, C., Pannala, S., Syamlal, M.,
         & Caussat, B. (2008).
-        Multifluid Eulerian modeling of dense gas–solids fluidized bed
+        Multifluid Eulerian modeling of dense gas–solids fluidised bed
         hydrodynamics: influence of the dissipation parameters.
         Chemical Engineering Science, 63(22), 5540-5551.
     \endverbatim
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/multiphaseCompressibleMomentumTransportModels/kineticTheoryModels/kineticTheoryModel/kineticTheoryModel.H b/applications/solvers/multiphase/multiphaseEulerFoam/multiphaseCompressibleMomentumTransportModels/kineticTheoryModels/kineticTheoryModel/kineticTheoryModel.H
index 048c129f3d..fe8be86836 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/multiphaseCompressibleMomentumTransportModels/kineticTheoryModels/kineticTheoryModel/kineticTheoryModel.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/multiphaseCompressibleMomentumTransportModels/kineticTheoryModels/kineticTheoryModel/kineticTheoryModel.H
@@ -31,7 +31,7 @@ Description
     \verbatim
         van Wachem, B. G. M. (2000).
         Derivation, implementation, and validation of computer simulation models
-        for gas-solid fluidized beds.
+        for gas-solid fluidised beds.
         PhD Thesis, TU Delft.
     \endverbatim
 
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/diameterModels/velocityGroup/sizeGroup/shapeModels/shapeModel/shapeModel.H b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/diameterModels/velocityGroup/sizeGroup/shapeModels/shapeModel/shapeModel.H
index fbb53828c1..abd8fad4d7 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/diameterModels/velocityGroup/sizeGroup/shapeModels/shapeModel/shapeModel.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/diameterModels/velocityGroup/sizeGroup/shapeModels/shapeModel/shapeModel.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2019-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2019-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -26,7 +26,7 @@ Class
 
 Description
     Base class for modeling shape, i.e. a physical diameter of a sizeGroup.
-    This diameter may then be utilized for calculation of breakup, coalescence
+    This diameter may then be utilised for calculation of breakup, coalescence
     or drift rates, depending on the model implementation.
 
 SourceFiles
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phaseModel/phaseModel/phaseModel.H b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phaseModel/phaseModel/phaseModel.H
index 4857f0a220..38abb051a4 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phaseModel/phaseModel/phaseModel.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/phaseModel/phaseModel/phaseModel.H
@@ -68,7 +68,7 @@ class phaseModel
         label index_;
 
         //- Return the residual phase-fraction for given phase
-        //  Used to stabilize the phase momentum as the phase-fraction -> 0
+        //  Used to stabilise the phase momentum as the phase-fraction -> 0
         dimensionedScalar residualAlpha_;
 
         //- Optional maximum phase-fraction (e.g. packing limit)
@@ -185,7 +185,7 @@ public:
         const phaseSystem& fluid() const;
 
         //- Return the residual phase-fraction for given phase
-        //  Used to stabilize the phase momentum as the phase-fraction -> 0
+        //  Used to stabilise the phase momentum as the phase-fraction -> 0
         const dimensionedScalar& residualAlpha() const;
 
         //- Return the maximum phase-fraction (e.g. packing limit)
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/binaryBreakupModels/LuoSvendsen/LuoSvendsen.H b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/binaryBreakupModels/LuoSvendsen/LuoSvendsen.H
index 15b167e4f6..85f6014d57 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/binaryBreakupModels/LuoSvendsen/LuoSvendsen.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/binaryBreakupModels/LuoSvendsen/LuoSvendsen.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2019-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2019-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -98,7 +98,7 @@ Description
         \rho_c      |  Density of continuous phase [kg/m^3]
         \eta        |  Kolmogorov length scale [m]
         \Gamma(a,z) |  Upper incomplete gamma function
-        Q(a,z)      |  Regularized upper incomplete gamma function
+        Q(a,z)      |  Regularised upper incomplete gamma function
         \Gamma(a)   |  Gamma function
     \endvartable
 
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/BrownianCollisions/BrownianCollisions.H b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/BrownianCollisions/BrownianCollisions.H
index 46d681ca74..f8fd78c2a2 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/BrownianCollisions/BrownianCollisions.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/BrownianCollisions/BrownianCollisions.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2019-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2019-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::diameterModels::coalescenceModels::BrownianCollisions
 
 Description
-    Model describing coagulation due to Brownian motion. Utilizes collisional
+    Model describing coagulation due to Brownian motion. Utilises collisional
     diameters and the Cunningham slip correction. The slip correction
     coefficient is implemented in the following form:
 
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/DahnekeInterpolation/DahnekeInterpolation.H b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/DahnekeInterpolation/DahnekeInterpolation.H
index 23ccd097ad..8e98c605a4 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/DahnekeInterpolation/DahnekeInterpolation.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/DahnekeInterpolation/DahnekeInterpolation.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2019-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2019-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -26,7 +26,7 @@ Class
 
 Description
     Interpolation formula of Dahneke (1983) as presented by Otto et al. (1999).
-    Utilizes collisional diameters.
+    Utilises collisional diameters.
 
     References:
     \verbatim
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/ballisticCollisions/ballisticCollisions.H b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/ballisticCollisions/ballisticCollisions.H
index 5e4f1ce9dd..4949b4d65f 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/ballisticCollisions/ballisticCollisions.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/ballisticCollisions/ballisticCollisions.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2019-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2019-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::diameterModels::coalescenceModels::ballisticCollisions
 
 Description
-    Model describing coagulation due to ballistic collisions. Utilizes
+    Model describing coagulation due to ballistic collisions. Utilises
     collisional diameters.
 
 SourceFiles
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/turbulentShear/turbulentShear.H b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/turbulentShear/turbulentShear.H
index 62de8663bd..a30b2be2d7 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/turbulentShear/turbulentShear.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/coalescenceModels/turbulentShear/turbulentShear.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2019-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2019-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::diameterModels::coalescenceModels::turbulentShear
 
 Description
-    Model describing coagulation due to turbulent shear. Utilizes physical, i.e.
+    Model describing coagulation due to turbulent shear. Utilises physical, i.e.
     collisional diameters.
 
 SourceFiles
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/nucleationModels/wallBoiling/wallBoiling.C b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/nucleationModels/wallBoiling/wallBoiling.C
index 575c4e9d62..d0dca1d537 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/nucleationModels/wallBoiling/wallBoiling.C
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/nucleationModels/wallBoiling/wallBoiling.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -113,7 +113,7 @@ void Foam::diameterModels::nucleationModels::wallBoiling::precompute()
                     << endl
                     << "    The nucleation rate in populationBalance "
                     << popBal_.name() << " is set to zero." << endl
-                    << "    Adjust discretization over property space to"
+                    << "    Adjust discretisation over property space to"
                     << " suppress this warning."
                     << endl;
             }
@@ -128,7 +128,7 @@ void Foam::diameterModels::nucleationModels::wallBoiling::precompute()
                     << endl
                     << "    The nucleation rate in populationBalance "
                     << popBal_.name() << " is set to zero." << endl
-                    << "    Adjust discretization over property space to"
+                    << "    Adjust discretisation over property space to"
                     << " suppress this warning."
                     << endl;
             }
diff --git a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/populationBalanceModel/populationBalanceModel.H b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/populationBalanceModel/populationBalanceModel.H
index ca214368e4..da83e1019e 100644
--- a/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/populationBalanceModel/populationBalanceModel.H
+++ b/applications/solvers/multiphase/multiphaseEulerFoam/phaseSystems/populationBalanceModel/populationBalanceModel/populationBalanceModel.H
@@ -29,7 +29,7 @@ Description
     a class method (also called sectional or discrete method). The internal
     coordinate is set to the particle volume, so the equation is based on
     a transport equation of the volume-based number density function. The
-    discretization is done using the fixed pivot technique of Kumar and
+    discretisation is done using the fixed pivot technique of Kumar and
     Ramkrishna (1996). The source terms are written in a way that particle
     number and mass are preserved. Coalescence (coagulation), breakup, drift
     (growth and surface loss) as well as nucleation are supported.
@@ -53,7 +53,7 @@ Description
     \verbatim
         Coalescence and breakup term formulation:
         Kumar, S., & Ramkrishna, D. (1996).
-        On the solution of population balance equations by discretization-I. A
+        On the solution of population balance equations by discretisation-I. A
         fixed pivot technique.
         Chemical Engineering Science, 51(8), 1311-1332.
     \endverbatim
diff --git a/applications/test/PackedList/Make/options b/applications/test/PackedList/Make/options
index 2b5401f1c0..dca846aef7 100644
--- a/applications/test/PackedList/Make/options
+++ b/applications/test/PackedList/Make/options
@@ -1,3 +1,3 @@
-# Check for consistent behaviour with non-optimized code
+# Check for consistent behaviour with non-optimised code
 EXE_INC = \
     -DFULLDEBUG -g -O0
diff --git a/applications/test/PackedList/Test-PackedList.C b/applications/test/PackedList/Test-PackedList.C
index aa8992e45e..e70ecff790 100644
--- a/applications/test/PackedList/Test-PackedList.C
+++ b/applications/test/PackedList/Test-PackedList.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -50,7 +50,7 @@ inline void reportInfo()
         << "PackedList<" << nBits << ">" << nl
         << " max_value: " << PackedList<nBits>::max_value() << nl
         << " packing: " << PackedList<nBits>::packing() << nl
-        << " utilization: " << (nBits * offset) << nl;
+        << " utilisation: " << (nBits * offset) << nl;
 
     Info<< " Masking:" << nl
         << "  shift << "
diff --git a/applications/test/router/Test-processorRouter.C b/applications/test/router/Test-processorRouter.C
index 6182933325..9c1e9c51d0 100644
--- a/applications/test/router/Test-processorRouter.C
+++ b/applications/test/router/Test-processorRouter.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -113,7 +113,7 @@ int main(int argc, char *argv[])
         static_cast<const labelList&>(procNeighbours(mesh))
     );
 
-    // Collect centres of individual meshes (for visualization only)
+    // Collect centres of individual meshes (for visualisation only)
     Gather<point> meshCentres(meshCentre(mesh));
 
     if (!Pstream::master())
@@ -174,7 +174,7 @@ int main(int argc, char *argv[])
 
     //
     // Iterate over routing. Route as much as possible during each iteration
-    // and stop if all paths have been routed. No special ordering to maximize
+    // and stop if all paths have been routed. No special ordering to maximise
     // routing during one iteration.
     //
 
diff --git a/applications/test/tokenise/Make/files b/applications/test/tokenise/Make/files
new file mode 100644
index 0000000000..2a2d24f553
--- /dev/null
+++ b/applications/test/tokenise/Make/files
@@ -0,0 +1,3 @@
+Test-tokenise.C
+
+EXE = $(FOAM_USER_APPBIN)/Test-tokenise
diff --git a/applications/test/tokenise/Make/options b/applications/test/tokenise/Make/options
new file mode 100644
index 0000000000..dca846aef7
--- /dev/null
+++ b/applications/test/tokenise/Make/options
@@ -0,0 +1,3 @@
+# Check for consistent behaviour with non-optimised code
+EXE_INC = \
+    -DFULLDEBUG -g -O0
diff --git a/applications/test/tokenize/Test-tokenize.C b/applications/test/tokenise/Test-tokenise.C
similarity index 92%
rename from applications/test/tokenize/Test-tokenize.C
rename to applications/test/tokenise/Test-tokenise.C
index 3faff54b40..bb2f3d9907 100644
--- a/applications/test/tokenize/Test-tokenize.C
+++ b/applications/test/tokenise/Test-tokenise.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -24,7 +24,7 @@ License
 Application
 
 Description
-    Test the tokenizing of various things
+    Test the tokenising of various things
 \*---------------------------------------------------------------------------*/
 
 #include "argList.H"
@@ -86,7 +86,7 @@ int main(int argc, char *argv[])
         }
     }
 
-    Info<< "tokenized args " << repeat << " times in "
+    Info<< "tokenised args " << repeat << " times in "
         << timer.cpuTimeIncrement() << " s\n\n";
 
     if (args.optionFound("file"))
@@ -97,7 +97,7 @@ int main(int argc, char *argv[])
 
             if (count == 0)
             {
-                Info<< "tokenizing file: " << args["file"] << nl;
+                Info<< "tokenising file: " << args["file"] << nl;
             }
 
             while (is.good())
@@ -116,7 +116,7 @@ int main(int argc, char *argv[])
             }
         }
 
-        Info<< "tokenized file " << repeat << " times in "
+        Info<< "tokenised file " << repeat << " times in "
             << timer.cpuTimeIncrement() << " s\n\n";
     }
 
diff --git a/applications/test/tokenize/Make/files b/applications/test/tokenize/Make/files
deleted file mode 100644
index b4ce91199e..0000000000
--- a/applications/test/tokenize/Make/files
+++ /dev/null
@@ -1,3 +0,0 @@
-Test-tokenize.C
-
-EXE = $(FOAM_USER_APPBIN)/Test-tokenize
diff --git a/applications/test/tokenize/Make/options b/applications/test/tokenize/Make/options
deleted file mode 100644
index 2b5401f1c0..0000000000
--- a/applications/test/tokenize/Make/options
+++ /dev/null
@@ -1,3 +0,0 @@
-# Check for consistent behaviour with non-optimized code
-EXE_INC = \
-    -DFULLDEBUG -g -O0
diff --git a/applications/utilities/mesh/advanced/PDRMesh/PDRMesh.C b/applications/utilities/mesh/advanced/PDRMesh/PDRMesh.C
index ae77014fb9..ad21d81632 100644
--- a/applications/utilities/mesh/advanced/PDRMesh/PDRMesh.C
+++ b/applications/utilities/mesh/advanced/PDRMesh/PDRMesh.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -999,7 +999,7 @@ int main(int argc, char *argv[])
     // ~~~~~~~~~~~~~~~~~~~~~~
     //
 
-    // Synchronize wantedPatch across coupled patches.
+    // Synchronise wantedPatch across coupled patches.
     syncTools::syncFaceList
     (
         subsetter.subMesh(),
@@ -1007,7 +1007,7 @@ int main(int argc, char *argv[])
         maxEqOp<label>()
     );
 
-    // Synchronize coupledWantedPatch across coupled patches.
+    // Synchronise coupledWantedPatch across coupled patches.
     syncTools::syncFaceList
     (
         subsetter.subMesh(),
@@ -1015,7 +1015,7 @@ int main(int argc, char *argv[])
         maxEqOp<label>()
     );
 
-    // Synchronize cyclicWantedPatch across coupled patches.
+    // Synchronise cyclicWantedPatch across coupled patches.
     syncTools::syncFaceList
     (
         subsetter.subMesh(),
@@ -1023,7 +1023,7 @@ int main(int argc, char *argv[])
         maxEqOp<label>()
     );
 
-    // Synchronize cyclicWantedPatch across coupled patches.
+    // Synchronise cyclicWantedPatch across coupled patches.
     syncTools::syncFaceList
     (
         subsetter.subMesh(),
diff --git a/applications/utilities/mesh/conversion/fluentMeshToFoam/fluentMeshToFoam.L b/applications/utilities/mesh/conversion/fluentMeshToFoam/fluentMeshToFoam.L
index 672d00805a..bfe7bfd542 100644
--- a/applications/utilities/mesh/conversion/fluentMeshToFoam/fluentMeshToFoam.L
+++ b/applications/utilities/mesh/conversion/fluentMeshToFoam/fluentMeshToFoam.L
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -1611,7 +1611,7 @@ int main(int argc, char *argv[])
             // Mark zone cells, used for finding faces
             boolList zoneCell(pShapeMesh.nCells(), false);
 
-            // shift cell indizes by 1
+            // Shift cell indices by 1
             label nr=0;
             for (label celli = (start() - 1); celli < end(); celli++)
             {
@@ -1731,7 +1731,7 @@ int main(int argc, char *argv[])
 
                 cellSet internal(pShapeMesh, name, end() - start());
 
-                // shift cell indizes by 1
+                // Shift cell indices by 1
                 for (label celli = start() - 1; celli <= end() - 1; celli++)
                 {
                     internal.insert(celli);
diff --git a/applications/utilities/mesh/conversion/ideasUnvToFoam/ideasUnvToFoam.C b/applications/utilities/mesh/conversion/ideasUnvToFoam/ideasUnvToFoam.C
index cc1b2823b4..c50b123448 100644
--- a/applications/utilities/mesh/conversion/ideasUnvToFoam/ideasUnvToFoam.C
+++ b/applications/utilities/mesh/conversion/ideasUnvToFoam/ideasUnvToFoam.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -247,16 +247,16 @@ void readPoints
 
 void addAndExtend
 (
-    DynamicList<label>& indizes,
+    DynamicList<label>& indices,
     label celli,
     label val
 )
 {
-    if (indizes.size() < (celli+1))
+    if (indices.size() < (celli+1))
     {
-        indizes.setSize(celli+1,-1);
+        indices.setSize(celli+1,-1);
     }
-    indizes[celli] = val;
+    indices[celli] = val;
 }
 
 // Reads cells section. Read region as well? Not handled yet but should just
@@ -1228,15 +1228,15 @@ int main(int argc, char *argv[])
             forAll(faceZones.toc(), cnt)
             {
                 word name = faceZones.toc()[cnt];
-                const labelList& oldIndizes = faceZones[name];
-                labelList indizes(oldIndizes.size());
+                const labelList& oldindices = faceZones[name];
+                labelList indices(oldindices.size());
 
                 Info<< " Face Zone " << name << " " << tab
-                    << oldIndizes.size() << endl;
+                    << oldindices.size() << endl;
 
-                forAll(indizes, i)
+                forAll(indices, i)
                 {
-                    const label old = oldIndizes[i];
+                    const label old = oldindices[i];
                     label nouveau = -1;
                     label c1 = -1, c2 = -1;
                     if (faceToCell[0].found(old))
@@ -1285,13 +1285,13 @@ int main(int argc, char *argv[])
                         }
                     }
                     assert(nouveau > -1);
-                    indizes[i] = nouveau;
+                    indices[i] = nouveau;
                 }
                 fZones[cnt] = new faceZone
                 (
                     faceZones.toc()[cnt],
-                    indizes,
-                    boolList(indizes.size(),false),
+                    indices,
+                    boolList(indices.size(),false),
                     cnt,
                     mesh.faceZones()
                 );
diff --git a/applications/utilities/mesh/generation/foamyMesh/cellSizeAndAlignmentGrid/cellSizeAndAlignmentGrid.C b/applications/utilities/mesh/generation/foamyMesh/cellSizeAndAlignmentGrid/cellSizeAndAlignmentGrid.C
index 4eba33b6eb..0f1ebc8c44 100644
--- a/applications/utilities/mesh/generation/foamyMesh/cellSizeAndAlignmentGrid/cellSizeAndAlignmentGrid.C
+++ b/applications/utilities/mesh/generation/foamyMesh/cellSizeAndAlignmentGrid/cellSizeAndAlignmentGrid.C
@@ -394,8 +394,8 @@ int main(int argc, char *argv[])
                     pointAlignment() += norms[nI];
                 }
 
-                pointAlignment().normalize();
-                pointAlignment().orthogonalize();
+                pointAlignment().normalise();
+                pointAlignment().orthogonalise();
             }
             else
             {
@@ -421,8 +421,8 @@ int main(int argc, char *argv[])
                         pointAlignment() += norms[nI];
                     }
 
-                    pointAlignment().normalize();
-                    pointAlignment().orthogonalize();
+                    pointAlignment().normalise();
+                    pointAlignment().orthogonalise();
                 }
                 else
                 {
@@ -558,8 +558,8 @@ int main(int argc, char *argv[])
                 newTriad += tmpTriad;
             }
 
-            newTriad.normalize();
-            newTriad.orthogonalize();
+            newTriad.normalise();
+            newTriad.orthogonalise();
 //            newTriad = newTriad.sortxyz();
 
             label nFixed = 0;
@@ -596,7 +596,7 @@ int main(int argc, char *argv[])
                     }
                 }
 
-                newTriad.orthogonalize();
+                newTriad.orthogonalise();
             }
             else if (nFixed == 3)
             {
diff --git a/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/cellShapeControl/cellShapeControl.C b/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/cellShapeControl/cellShapeControl.C
index 57db795a10..8e5c8e4f22 100644
--- a/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/cellShapeControl/cellShapeControl.C
+++ b/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/cellShapeControl/cellShapeControl.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2012-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -214,8 +214,8 @@ Foam::tensor Foam::cellShapeControl::cellAlignment(const point& pt) const
                 }
             }
 
-            tri.normalize();
-            tri.orthogonalize();
+            tri.normalise();
+            tri.orthogonalise();
             tri = tri.sortxyz();
 
             alignment = tri;
@@ -292,8 +292,8 @@ void Foam::cellShapeControl::cellSizeAndAlignment
                 }
             }
 
-            tri.normalize();
-            tri.orthogonalize();
+            tri.normalise();
+            tri.orthogonalise();
             tri = tri.sortxyz();
 
             alignment = tri;
@@ -314,7 +314,7 @@ void Foam::cellShapeControl::cellSizeAndAlignment
 
         if (!v.set(dir) || size == 0)
         {
-            // Force orthogonalization of triad.
+            // Force orthogonalisation of triad.
 
             scalar dotProd = great;
             if (dir == 0)
@@ -336,8 +336,8 @@ void Foam::cellShapeControl::cellSizeAndAlignment
                 v[dir] = v[0] ^ v[1];
             }
 
-            v.normalize();
-            v.orthogonalize();
+            v.normalise();
+            v.orthogonalise();
 
             Pout<< "Dot prod = " << dotProd << endl;
             Pout<< "Alignment = " << v << endl;
diff --git a/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/cellSizeAndAlignmentControl/searchableSurfaceControl/searchableSurfaceControl.C b/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/cellSizeAndAlignmentControl/searchableSurfaceControl/searchableSurfaceControl.C
index a03b7caee8..d81eb20834 100644
--- a/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/cellSizeAndAlignmentControl/searchableSurfaceControl/searchableSurfaceControl.C
+++ b/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/cellSizeAndAlignmentControl/searchableSurfaceControl/searchableSurfaceControl.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2012-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -385,8 +385,8 @@ void Foam::searchableSurfaceControl::initialVertices
                 pointAlignment() += norms[nI];
             }
 
-            pointAlignment().normalize();
-            pointAlignment().orthogonalize();
+            pointAlignment().normalise();
+            pointAlignment().orthogonalise();
         }
         else
         {
@@ -412,8 +412,8 @@ void Foam::searchableSurfaceControl::initialVertices
                     pointAlignment() += norms[nI];
                 }
 
-                pointAlignment().normalize();
-                pointAlignment().orthogonalize();
+                pointAlignment().normalise();
+                pointAlignment().orthogonalise();
             }
             else
             {
diff --git a/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/smoothAlignmentSolver/smoothAlignmentSolver.C b/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/smoothAlignmentSolver/smoothAlignmentSolver.C
index 76dbf96cca..89fdc0b6f3 100644
--- a/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/smoothAlignmentSolver/smoothAlignmentSolver.C
+++ b/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/cellShapeControl/smoothAlignmentSolver/smoothAlignmentSolver.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -273,7 +273,7 @@ void Foam::smoothAlignmentSolver::applyBoundaryConditions
             }
         }
 
-        t.orthogonalize();
+        t.orthogonalise();
     }
     else if (nFixed == 3)
     {
@@ -390,8 +390,8 @@ void Foam::smoothAlignmentSolver::smoothAlignments
             const triad& oldTriad = alignments[pI];
             triad& newTriad = triadAv[pI];
 
-            newTriad.normalize();
-            newTriad.orthogonalize();
+            newTriad.normalise();
+            newTriad.orthogonalise();
 
             // Enforce the boundary conditions
             const triad& fixedAlignment = fixedAlignments[pI];
diff --git a/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshFeaturePoints.C b/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshFeaturePoints.C
index 9e3143fc6d..55ef7d2b2f 100644
--- a/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshFeaturePoints.C
+++ b/applications/utilities/mesh/generation/foamyMesh/conformalVoronoiMesh/conformalVoronoiMesh/conformalVoronoiMeshFeaturePoints.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2012-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -277,12 +277,12 @@ void Foam::conformalVoronoiMesh::createEdgePointGroupByCirculating
                 masterPtVec
             );
 
-        // Specialize for size = 1 && baffle
+        // Specialise for size = 1 && baffle
         if (mag((normalDir & nextNormalDir) - 1) < small)
         {
             if (inside)
             {
-//                Info<< "Specialize for size 1 and baffle" << endl;
+//                Info<< "Specialise for size 1 and baffle" << endl;
 
                 vector s = ppDist*(edDir ^ normal);
 
diff --git a/applications/utilities/mesh/generation/foamyMesh/foamyHexMeshSurfaceSimplify/Make/files b/applications/utilities/mesh/generation/foamyMesh/foamyHexMeshSurfaceSimplify/Make/files
index b4b7159014..c9b264d9d4 100644
--- a/applications/utilities/mesh/generation/foamyMesh/foamyHexMeshSurfaceSimplify/Make/files
+++ b/applications/utilities/mesh/generation/foamyMesh/foamyHexMeshSurfaceSimplify/Make/files
@@ -6,7 +6,7 @@
 
 # $(MarchingCubes)/data_access.cpp
 # $(MarchingCubes)/fparser.cpp
-# $(MarchingCubes)/fpoptimizer.cpp
+# $(MarchingCubes)/fpoptimiser.cpp
 # $(MarchingCubes)/MarchingCubes.cpp
 # $(MarchingCubes)/mc_draw.cpp
 # $(MarchingCubes)/morton.cpp
diff --git a/applications/utilities/mesh/generation/foamyMesh/foamyQuadMesh/insertSurfaceNearestPointPairs.C b/applications/utilities/mesh/generation/foamyMesh/foamyQuadMesh/insertSurfaceNearestPointPairs.C
index 3c761e03e4..48d9ed8703 100644
--- a/applications/utilities/mesh/generation/foamyMesh/foamyQuadMesh/insertSurfaceNearestPointPairs.C
+++ b/applications/utilities/mesh/generation/foamyMesh/foamyQuadMesh/insertSurfaceNearestPointPairs.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -190,7 +190,7 @@ void Foam::CV2D::insertSurfaceNearestPointPairs()
 
 //                // Find where point is on triangle.
 //                // Note tolerance needed is relative one
-//                // (used in comparing normalized [0..1] triangle coordinates).
+//                // (used in comparing normalised [0..1] triangle coordinates).
 //                label nearType, nearLabel;
 //                triPointRef
 //                (
diff --git a/applications/utilities/mesh/manipulation/checkMesh/checkTools.C b/applications/utilities/mesh/manipulation/checkMesh/checkTools.C
index dec131187b..9f38f0722f 100644
--- a/applications/utilities/mesh/manipulation/checkMesh/checkTools.C
+++ b/applications/utilities/mesh/manipulation/checkMesh/checkTools.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2015-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2015-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -110,7 +110,7 @@ void Foam::printMeshStats(const polyMesh& mesh, const bool allTopology)
         << "    cell zones:       " << mesh.cellZones().size() << nl
         << endl;
 
-    // Construct shape recognizers
+    // Construct shape recognisers
     hexMatcher hex;
     prismMatcher prism;
     wedgeMatcher wedge;
diff --git a/applications/utilities/mesh/manipulation/checkMesh/printMeshStats.C b/applications/utilities/mesh/manipulation/checkMesh/printMeshStats.C
index 7f4a226a42..0db4379218 100644
--- a/applications/utilities/mesh/manipulation/checkMesh/printMeshStats.C
+++ b/applications/utilities/mesh/manipulation/checkMesh/printMeshStats.C
@@ -78,7 +78,7 @@ void Foam::printMeshStats(const polyMesh& mesh, const bool allTopology)
         << "    cell zones:       " << mesh.cellZones().size() << nl
         << endl;
 
-    // Construct shape recognizers
+    // Construct shape recognisers
     hexMatcher hex;
     prismMatcher prism;
     wedgeMatcher wedge;
diff --git a/applications/utilities/mesh/manipulation/createPatch/createPatch.C b/applications/utilities/mesh/manipulation/createPatch/createPatch.C
index 93548be2e2..f240c642e9 100644
--- a/applications/utilities/mesh/manipulation/createPatch/createPatch.C
+++ b/applications/utilities/mesh/manipulation/createPatch/createPatch.C
@@ -429,7 +429,7 @@ void syncPoints
     //  reduction not strictly necessary.
     // reduce(hasTransformation, orOp<bool>());
 
-    // Synchronize multiple shared points.
+    // Synchronise multiple shared points.
     const globalMeshData& pd = mesh.globalData();
 
     if (pd.nGlobalPoints() > 0)
diff --git a/applications/utilities/mesh/manipulation/objToVTK/objToVTK.C b/applications/utilities/mesh/manipulation/objToVTK/objToVTK.C
index 736fa169be..29083134b9 100644
--- a/applications/utilities/mesh/manipulation/objToVTK/objToVTK.C
+++ b/applications/utilities/mesh/manipulation/objToVTK/objToVTK.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -176,10 +176,10 @@ int main(int argc, char *argv[])
                 hasWarned = true;
 
                 WarningInFunction
-                    << "Unrecognized OBJ command " << cmd << nl
+                    << "Unrecognised OBJ command " << cmd << nl
                     << "In line " << lineStream.str()
                     << " at linenumber " << lineNo << nl
-                    << "Only recognized commands are 'v' and 'l'.\n"
+                    << "Only recognised commands are 'v' and 'l'.\n"
                     << "If this is a surface command use surfaceConvert instead"
                     << " to convert to a file format that can be read by VTK"
                     << endl;
diff --git a/applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C b/applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C
index e9a60cc30c..2db23de69a 100644
--- a/applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C
+++ b/applications/utilities/mesh/manipulation/renumberMesh/renumberMesh.C
@@ -603,7 +603,7 @@ int main(int argc, char *argv[])
 {
     argList::addNote
     (
-        "Renumber mesh to minimize bandwidth"
+        "Renumber mesh to minimise bandwidth"
     );
 
     #include "addRegionOption.H"
diff --git a/applications/utilities/mesh/manipulation/setSet/setSet.C b/applications/utilities/mesh/manipulation/setSet/setSet.C
index 2b06872cbe..e63a8b03e3 100644
--- a/applications/utilities/mesh/manipulation/setSet/setSet.C
+++ b/applications/utilities/mesh/manipulation/setSet/setSet.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -563,7 +563,7 @@ bool doCommand
             {
                 // Set will have been modified.
 
-                // Synchronize for coupled patches.
+                // Synchronise for coupled patches.
                 if (!noSync) currentSet.sync(mesh);
 
                 // Write
diff --git a/applications/utilities/mesh/manipulation/topoSet/topoSet.C b/applications/utilities/mesh/manipulation/topoSet/topoSet.C
index 559ab1b8cb..302f8dba89 100644
--- a/applications/utilities/mesh/manipulation/topoSet/topoSet.C
+++ b/applications/utilities/mesh/manipulation/topoSet/topoSet.C
@@ -289,7 +289,7 @@ int main(int argc, char *argv[])
                     );
 
                     source().applyToSet(action, currentSet());
-                    // Synchronize for coupled patches.
+                    // Synchronise for coupled patches.
                     if (!noSync) currentSet().sync(mesh);
                     currentSet().write();
                     fileHandler().flush();
@@ -324,7 +324,7 @@ int main(int argc, char *argv[])
 
                     // Combine new value of currentSet with old one.
                     currentSet().subset(oldSet());
-                    // Synchronize for coupled patches.
+                    // Synchronise for coupled patches.
                     if (!noSync) currentSet().sync(mesh);
                     currentSet().write();
                     fileHandler().flush();
diff --git a/applications/utilities/postProcessing/dataConversion/foamToEnsightParts/ensightOutputFunctions.H b/applications/utilities/postProcessing/dataConversion/foamToEnsightParts/ensightOutputFunctions.H
index f8ed9b7b42..57322d1c31 100644
--- a/applications/utilities/postProcessing/dataConversion/foamToEnsightParts/ensightOutputFunctions.H
+++ b/applications/utilities/postProcessing/dataConversion/foamToEnsightParts/ensightOutputFunctions.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -75,7 +75,7 @@ void ensightLagrangianField
     IOstream::streamFormat format
 );
 
-//- Write generalized field components
+//- Write generalised field components
 template<class Type>
 void ensightVolField
 (
diff --git a/applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkOpenFOAMTupleRemap.H b/applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkOpenFOAMTupleRemap.H
index 2b1eebd0f8..3fec90e9c6 100644
--- a/applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkOpenFOAMTupleRemap.H
+++ b/applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkOpenFOAMTupleRemap.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -38,7 +38,7 @@ template<class Type>
 inline void vtkOpenFOAMTupleRemap(float vec[]);
 
 
-// Template specialization for symmTensor
+// Template specialisation for symmTensor
 template<>
 inline void vtkOpenFOAMTupleRemap<Foam::symmTensor>(float vec[])
 {
diff --git a/applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkPVFoam.H b/applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkPVFoam.H
index cb8ab5ce73..be4cf2c201 100644
--- a/applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkPVFoam.H
+++ b/applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkPVFoam.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -108,7 +108,7 @@ class vtkPVFoam
 {
     // Private classes
 
-        //- Bookkeeping for GUI checklists and the multi-block organization
+        //- Bookkeeping for GUI checklists and the multi-block organisation
         class arrayRange
         {
             const char *name_;
diff --git a/applications/utilities/postProcessing/graphics/PVReaders/vtkPVblockMesh/vtkPVblockMesh.H b/applications/utilities/postProcessing/graphics/PVReaders/vtkPVblockMesh/vtkPVblockMesh.H
index b2ac63ae69..51a80f52b4 100644
--- a/applications/utilities/postProcessing/graphics/PVReaders/vtkPVblockMesh/vtkPVblockMesh.H
+++ b/applications/utilities/postProcessing/graphics/PVReaders/vtkPVblockMesh/vtkPVblockMesh.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -86,7 +86,7 @@ class vtkPVblockMesh
 {
     // Private classes
 
-        //- Bookkeeping for GUI checklists and the multi-block organization
+        //- Bookkeeping for GUI checklists and the multi-block organisation
         class arrayRange
         {
             const char *name_;
diff --git a/applications/utilities/surface/surfaceClean/collapseBase.C b/applications/utilities/surface/surfaceClean/collapseBase.C
index d6360e8f55..16ceec1196 100644
--- a/applications/utilities/surface/surfaceClean/collapseBase.C
+++ b/applications/utilities/surface/surfaceClean/collapseBase.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -387,7 +387,7 @@ static void markRegion
     if (faceToEdge[facei] == -1 || collapseRegion[facei] != -1)
     {
         FatalErrorInFunction
-            << "Problem : crossed into uncollapsed/regionized face"
+            << "Problem : crossed into uncollapsed/regionised face"
             << abort(FatalError);
     }
 
diff --git a/applications/utilities/surface/surfaceCoarsen/bunnylod/bunnygut.C b/applications/utilities/surface/surfaceCoarsen/bunnylod/bunnygut.C
index 31cc948347..ed25487e55 100644
--- a/applications/utilities/surface/surfaceCoarsen/bunnylod/bunnygut.C
+++ b/applications/utilities/surface/surfaceCoarsen/bunnylod/bunnygut.C
@@ -88,7 +88,7 @@ void DrawModelTriangles() {
                 int p0= Map(tri[i].v[0],render_num);
                 int p1= Map(tri[i].v[1],render_num);
                 int p2= Map(tri[i].v[2],render_num);
-                // note:  serious optimization opportunity here,
+                // note:  serious optimisation opportunity here,
                 //  by sorting the triangles the following "continue"
                 //  could have been made into a "break" statement.
                 if(p0==p1 || p1==p2 || p2==p0) continue;
@@ -107,7 +107,7 @@ void DrawModelTriangles() {
                         // therefore just use 1 face normal (flat shading)
                         Vector nrml = (v1-v0) * (v2-v1);  // cross product
                         if(0<magnitude(nrml)) {
-                                glNormal3fv(normalize(nrml));
+                                glNormal3fv(normalise(nrml));
                         }
                         glVertex3fv(v0);
                         glVertex3fv(v1);
diff --git a/applications/utilities/surface/surfaceCoarsen/bunnylod/progmesh.C b/applications/utilities/surface/surfaceCoarsen/bunnylod/progmesh.C
index efc20629f5..ffa7119e44 100644
--- a/applications/utilities/surface/surfaceCoarsen/bunnylod/progmesh.C
+++ b/applications/utilities/surface/surfaceCoarsen/bunnylod/progmesh.C
@@ -93,7 +93,7 @@ void Triangle::ComputeNormal(){
         Vector v2=vertex[2]->position;
         normal = (v1-v0)*(v2-v1);
         if(magnitude(normal)==0)return;
-        normal = normalize(normal);
+        normal = normalise(normal);
 }
 void Triangle::ReplaceVertex(Vertex *vold,Vertex *vnew) {
         assert(vold && vnew);
@@ -275,7 +275,7 @@ Vertex *MinimumCostEdge(){
         // Find the edge that when collapsed will affect model the least.
         // This function actually returns a Vertex, the second vertex
         // of the edge (collapse candidate) is stored in the vertex data.
-        // Serious optimization opportunity here: this function currently
+        // Serious optimisation opportunity here: this function currently
         // does a sequential search through an unsorted list :-(
         // Our algorithm could be O(n*lg(n)) instead of O(n*n)
         Vertex *mn=vertices[0];
diff --git a/applications/utilities/surface/surfaceCoarsen/bunnylod/vector.C b/applications/utilities/surface/surfaceCoarsen/bunnylod/vector.C
index 358e0250b6..6233c4e574 100644
--- a/applications/utilities/surface/surfaceCoarsen/bunnylod/vector.C
+++ b/applications/utilities/surface/surfaceCoarsen/bunnylod/vector.C
@@ -11,10 +11,10 @@ float  sqr(float a) {return a*a;}
 float magnitude(Vector v) {
     return float(sqrt(sqr(v.x) + sqr( v.y)+ sqr(v.z)));
 }
-Vector normalize(Vector v) {
+Vector normalise(Vector v) {
     float d=magnitude(v);
     if (d==0) {
-                printf("Can't normalize ZERO vector\n");
+                printf("Can't normalise ZERO vector\n");
                 assert(0);
                 d=0.1f;
         }
diff --git a/applications/utilities/surface/surfaceCoarsen/bunnylod/vector.h b/applications/utilities/surface/surfaceCoarsen/bunnylod/vector.h
index 3f6f183370..3db3e590a0 100644
--- a/applications/utilities/surface/surfaceCoarsen/bunnylod/vector.h
+++ b/applications/utilities/surface/surfaceCoarsen/bunnylod/vector.h
@@ -19,7 +19,7 @@ class Vector {
 };
 
 float magnitude(Vector v);
-Vector normalize(Vector v);
+Vector normalise(Vector v);
 
 Vector operator+(Vector v1,Vector v2);
 Vector operator-(Vector v);
@@ -48,7 +48,7 @@ class Quaternion{
          float r,x,y,z;
          Quaternion(){x=y=z=0.0f;r=1.0f;};
          Quaternion(Vector v,float t){
-             v=normalize(v);
+             v=normalise(v);
              r=float(cos(t/2.0));
              v=v*float(sin(t/2.0));
              x=v.x;
diff --git a/applications/utilities/surface/surfaceCoarsen/bunnylod/winmain.C b/applications/utilities/surface/surfaceCoarsen/bunnylod/winmain.C
index 6226c31e95..1fb9c7d1b7 100644
--- a/applications/utilities/surface/surfaceCoarsen/bunnylod/winmain.C
+++ b/applications/utilities/surface/surfaceCoarsen/bunnylod/winmain.C
@@ -91,7 +91,7 @@ void ComputeMouseVector(){
     float x = spread * (MouseX-Width/2.0f)  /(Height/2.0f);
     Vector v(x ,y,-1);
     // v=UserOrientation *v;
-    v=normalize(v);
+    v=normalise(v);
         MouseVector = v;
 }
 
@@ -109,7 +109,7 @@ Quaternion VirtualTrackBall(Vector cop,Vector cor,Vector dir1,Vector dir2) {
         Vector nrml = cor - cop;
          // since trackball proportional to distance from cop
         float fudgefactor = 1.0f/(magnitude(nrml) * 0.25f);
-        nrml = normalize(nrml);
+        nrml = normalise(nrml);
         float dist = -(nrml^cor);
         Vector u= planelineintersection(nrml,dist,cop,cop+dir1);
         u=u-cor;
@@ -133,7 +133,7 @@ Quaternion VirtualTrackBall(Vector cop,Vector cor,Vector dir1,Vector dir2) {
         if(m>1)m=1; // avoid potential floating point error
         Quaternion q(Vector(1.0f,0.0f,0.0f),0.0f);
         if(m>0 && (angle=(float)asin(m))>3.14/180) {
-                        axis = normalize(axis);
+                        axis = normalise(axis);
                         q=Quaternion(axis,angle);
         }
         return q;
@@ -425,7 +425,7 @@ int APIENTRY WinMain(HINSTANCE hCurrentInst, HINSTANCE hPreviousInst,
         PostString("Demo by Stan Melax (c)1998",5,-5,20);
         PostString("Model by Viewpoint Datalabs (c)1996",5,-4,20);
         char buf[128];
-        PostString("Mesh Reduction Algorithm (non-optimized)",1,0,5);
+        PostString("Mesh Reduction Algorithm (non-optimised)",1,0,5);
         sprintf(buf,"was executed in %5.3f seconds",DeltaT);
         PostString(buf,2,1,6);
 
diff --git a/applications/utilities/surface/surfaceCoarsen/surfaceCoarsen.C b/applications/utilities/surface/surfaceCoarsen/surfaceCoarsen.C
index 4a53e96a5b..ddc07aa243 100644
--- a/applications/utilities/surface/surfaceCoarsen/surfaceCoarsen.C
+++ b/applications/utilities/surface/surfaceCoarsen/surfaceCoarsen.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -164,7 +164,7 @@ int main(int argc, char *argv[])
         int p1 = mapVertex(collapse_map, tri[i].v[1], render_num);
         int p2 = mapVertex(collapse_map, tri[i].v[2], render_num);
 
-        // note:  serious optimization opportunity here,
+        // note:  serious optimisation opportunity here,
         //  by sorting the triangles the following "continue"
         //  could have been made into a "break" statement.
         if (p0 == p1 || p1 == p2 || p2 == p0)
diff --git a/applications/utilities/surface/surfaceSplitNonManifolds/surfaceSplitNonManifolds.C b/applications/utilities/surface/surfaceSplitNonManifolds/surfaceSplitNonManifolds.C
index 85c72640d6..f190074ddf 100644
--- a/applications/utilities/surface/surfaceSplitNonManifolds/surfaceSplitNonManifolds.C
+++ b/applications/utilities/surface/surfaceSplitNonManifolds/surfaceSplitNonManifolds.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -78,7 +78,7 @@ void dumpPoints(const triSurface& surf, const labelList& borderPoint)
     fileName fName("borderPoints.obj");
 
     Info<< "Dumping borderPoints as Lightwave .obj file to " << fName
-        << "\nThis can be visualized with e.g. javaview (www.javaview.de)\n\n";
+        << "\nThis can be visualised with e.g. javaview (www.javaview.de)\n\n";
 
     OFstream os(fName);
 
@@ -99,7 +99,7 @@ void dumpEdges(const triSurface& surf, const boolList& borderEdge)
     fileName fName("borderEdges.obj");
 
     Info<< "Dumping borderEdges as Lightwave .obj file to " << fName
-        << "\nThis can be visualized with e.g. javaview (www.javaview.de)\n\n";
+        << "\nThis can be visualised with e.g. javaview (www.javaview.de)\n\n";
 
     OFstream os(fName);
 
@@ -125,7 +125,7 @@ void dumpFaces
 )
 {
     Info<< "Dumping connectedFaces as Lightwave .obj file to " << fName
-        << "\nThis can be visualized with e.g. javaview (www.javaview.de)\n\n";
+        << "\nThis can be visualised with e.g. javaview (www.javaview.de)\n\n";
 
     OFstream os(fName);
 
diff --git a/bin/foamCleanTutorials b/bin/foamCleanTutorials
index 70a0737db3..3d8b29e4bf 100755
--- a/bin/foamCleanTutorials
+++ b/bin/foamCleanTutorials
@@ -3,7 +3,7 @@
 # =========                 |
 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
 #  \\    /   O peration     | Website:  https://openfoam.org
-#   \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+#   \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
 #    \\/     M anipulation  |
 #------------------------------------------------------------------------------
 # License
@@ -64,11 +64,11 @@ done
 # (to avoid recursion)
 if [ $# -eq 0 -a -f Allwclean ]
 then
-    # Specialized script
+    # Specialised script
     ./Allwclean
 elif [ $# -eq 0 -a -f Allclean ]
 then
-    # Specialized script
+    # Specialised script
     ./Allclean
 elif [ -d system ]
 then
diff --git a/bin/tools/foamListBinDirs b/bin/tools/foamListBinDirs
index 0025df05c5..fad8ee8533 100755
--- a/bin/tools/foamListBinDirs
+++ b/bin/tools/foamListBinDirs
@@ -3,7 +3,7 @@
 # =========                 |
 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
 #  \\    /   O peration     | Website:  https://openfoam.org
-#   \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+#   \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
 #    \\/     M anipulation  |
 #------------------------------------------------------------------------------
 # License
@@ -57,7 +57,7 @@ archOptions="${2:-$WM_OPTIONS}"
     exit 1
 }
 
-# base arch (w/o precision, optimization, etc)
+# base arch (w/o precision, optimisation, etc)
 # same as "$WM_ARCH$WM_COMPILER"
 archCompiler=$(echo "$archOptions" | sed -e 's@[DS]P.*$@@')
 
diff --git a/bin/tools/foamListThirdPartyBinDirs b/bin/tools/foamListThirdPartyBinDirs
index e324dccb1e..09b3a94060 100755
--- a/bin/tools/foamListThirdPartyBinDirs
+++ b/bin/tools/foamListThirdPartyBinDirs
@@ -3,7 +3,7 @@
 # =========                 |
 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
 #  \\    /   O peration     | Website:  https://openfoam.org
-#   \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+#   \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
 #    \\/     M anipulation  |
 #------------------------------------------------------------------------------
 # License
@@ -57,7 +57,7 @@ archOptions="${2:-$WM_OPTIONS}"
     exit 1
 }
 
-# base arch (w/o precision, optimization, etc)
+# base arch (w/o precision, optimisation, etc)
 # same as "$WM_ARCH$WM_COMPILER"
 archCompiler=$(echo "$archOptions" | sed -e 's@[DS]P.*$@@')
 
diff --git a/bin/tools/foamLog.db b/bin/tools/foamLog.db
index 412783cfaf..ada9023ee0 100644
--- a/bin/tools/foamLog.db
+++ b/bin/tools/foamLog.db
@@ -15,7 +15,7 @@
 #
 #------------------------------------------------------------------------------
 
-#- String to recognize new iteration by (usually same as 'Time')
+#- String to recognise new iteration by (usually same as 'Time')
 Separator/^[ \t]*Time = /Time = 
 
 #- Time value:
diff --git a/doc/Doxygen/Doxyfile b/doc/Doxygen/Doxyfile
index cfdede6000..d4a21ca45d 100644
--- a/doc/Doxygen/Doxyfile
+++ b/doc/Doxygen/Doxyfile
@@ -194,7 +194,7 @@ QT_AUTOBRIEF           = NO
 # tag to YES if you prefer the old behavior instead.
 #
 # Note that setting this tag to YES also means that rational rose comments are
-# not recognized any more.
+# not recognised any more.
 # The default value is: NO.
 
 MULTILINE_CPP_IS_BRIEF = NO
@@ -2115,7 +2115,7 @@ HIDE_UNDOC_RELATIONS   = YES
 
 # If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
 # available from the path. This tool is part of Graphviz (see:
-# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
+# http://www.graphviz.org/), a graph visualisation toolkit from AT&T and Lucent
 # Bell Labs. The other options in this section have no effect if this option is
 # set to NO
 # The default value is: NO.
@@ -2334,7 +2334,7 @@ PLANTUML_INCLUDE_PATH  =
 
 # The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes
 # that will be shown in the graph. If the number of nodes in a graph becomes
-# larger than this value, doxygen will truncate the graph, which is visualized
+# larger than this value, doxygen will truncate the graph, which is visualised
 # by representing a node as a red box. Note that doxygen if the number of direct
 # children of the root node in a graph is already larger than
 # DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note that
diff --git a/doc/codingStyleGuide.org b/doc/codingStyleGuide.org
index 84fdc58f06..2a320e7075 100644
--- a/doc/codingStyleGuide.org
+++ b/doc/codingStyleGuide.org
@@ -479,7 +479,7 @@
     directories that only allows the initial comment block for the /.C/ files
     through.
 
-    The layout of the application documentation has not yet been finalized,
+    The layout of the application documentation has not yet been finalised,
     but foamToVTK shows an initial attempt.
 
 *** Orthography
diff --git a/etc/caseDicts/postProcessing/visualization/streamlines b/etc/caseDicts/postProcessing/visualisation/streamlines
similarity index 97%
rename from etc/caseDicts/postProcessing/visualization/streamlines
rename to etc/caseDicts/postProcessing/visualisation/streamlines
index 94072d9a7f..95b10930a8 100644
--- a/etc/caseDicts/postProcessing/visualization/streamlines
+++ b/etc/caseDicts/postProcessing/visualisation/streamlines
@@ -10,7 +10,7 @@ Description
 
 \*---------------------------------------------------------------------------*/
 
-#includeEtc "caseDicts/postProcessing/visualization/streamlines.cfg"
+#includeEtc "caseDicts/postProcessing/visualisation/streamlines.cfg"
 
 fields  (U p);
 
diff --git a/etc/caseDicts/postProcessing/visualization/streamlines.cfg b/etc/caseDicts/postProcessing/visualisation/streamlines.cfg
similarity index 100%
rename from etc/caseDicts/postProcessing/visualization/streamlines.cfg
rename to etc/caseDicts/postProcessing/visualisation/streamlines.cfg
diff --git a/etc/caseDicts/postProcessing/visualization/surfaces b/etc/caseDicts/postProcessing/visualisation/surfaces
similarity index 95%
rename from etc/caseDicts/postProcessing/visualization/surfaces
rename to etc/caseDicts/postProcessing/visualisation/surfaces
index 676bf35ad6..0a60a40f82 100644
--- a/etc/caseDicts/postProcessing/visualization/surfaces
+++ b/etc/caseDicts/postProcessing/visualisation/surfaces
@@ -14,7 +14,7 @@ Description
 
 \*---------------------------------------------------------------------------*/
 
-#includeEtc "caseDicts/postProcessing/visualization/surfaces.cfg"
+#includeEtc "caseDicts/postProcessing/visualisation/surfaces.cfg"
 
 fields       (p U);
 
diff --git a/etc/caseDicts/postProcessing/visualization/surfaces.cfg b/etc/caseDicts/postProcessing/visualisation/surfaces.cfg
similarity index 100%
rename from etc/caseDicts/postProcessing/visualization/surfaces.cfg
rename to etc/caseDicts/postProcessing/visualisation/surfaces.cfg
diff --git a/etc/config.sh/bash_completion b/etc/config.sh/bash_completion
index e084f3d7e6..117e451054 100644
--- a/etc/config.sh/bash_completion
+++ b/etc/config.sh/bash_completion
@@ -49,7 +49,7 @@ _adiabaticFlameT_ ()
 }
 complete -o filenames -o nospace -F _adiabaticFlameT_ adiabaticFlameT
 
-_adjointShapeOptimizationFoam_ ()
+_adjointShapeOptimisationFoam_ ()
 {
     local cur="${COMP_WORDS[COMP_CWORD]}"
     local prev="${COMP_WORDS[COMP_CWORD-1]}"
@@ -72,7 +72,7 @@ _adjointShapeOptimizationFoam_ ()
     esac
     COMPREPLY=( $(compgen -W "${opts}" $extra -- ${cur}) )
 }
-complete -o filenames -o nospace -F _adjointShapeOptimizationFoam_ adjointShapeOptimizationFoam
+complete -o filenames -o nospace -F _adjointShapeOptimisationFoam_ adjointShapeOptimisationFoam
 
 _ansysToFoam_ ()
 {
diff --git a/src/MomentumTransportModels/compressible/dynamicMomentumTransportModels/dynamicMomentumTransportModels.C b/src/MomentumTransportModels/compressible/dynamicMomentumTransportModels/dynamicMomentumTransportModels.C
index 88c449cb5f..9e1bdc71db 100644
--- a/src/MomentumTransportModels/compressible/dynamicMomentumTransportModels/dynamicMomentumTransportModels.C
+++ b/src/MomentumTransportModels/compressible/dynamicMomentumTransportModels/dynamicMomentumTransportModels.C
@@ -44,8 +44,8 @@ makeBaseMomentumTransportModel
 #include "Stokes.H"
 makeLaminarModel(Stokes);
 
-#include "generalizedNewtonian.H"
-makeLaminarModel(generalizedNewtonian);
+#include "generalisedNewtonian.H"
+makeLaminarModel(generalisedNewtonian);
 
 #include "lambdaThixotropic.H"
 makeLaminarModel(lambdaThixotropic);
diff --git a/src/MomentumTransportModels/incompressible/kinematicMomentumTransportModels/kinematicMomentumTransportModels.C b/src/MomentumTransportModels/incompressible/kinematicMomentumTransportModels/kinematicMomentumTransportModels.C
index 719a6dd724..5a5fad5d25 100644
--- a/src/MomentumTransportModels/incompressible/kinematicMomentumTransportModels/kinematicMomentumTransportModels.C
+++ b/src/MomentumTransportModels/incompressible/kinematicMomentumTransportModels/kinematicMomentumTransportModels.C
@@ -44,8 +44,8 @@ makeBaseMomentumTransportModel
 #include "Stokes.H"
 makeLaminarModel(Stokes);
 
-#include "generalizedNewtonian.H"
-makeLaminarModel(generalizedNewtonian);
+#include "generalisedNewtonian.H"
+makeLaminarModel(generalisedNewtonian);
 
 #include "lambdaThixotropic.H"
 makeLaminarModel(lambdaThixotropic);
diff --git a/src/MomentumTransportModels/momentumTransportModels/LES/DeardorffDiffStress/DeardorffDiffStress.H b/src/MomentumTransportModels/momentumTransportModels/LES/DeardorffDiffStress/DeardorffDiffStress.H
index 2f5db92f41..31a36c6d58 100644
--- a/src/MomentumTransportModels/momentumTransportModels/LES/DeardorffDiffStress/DeardorffDiffStress.H
+++ b/src/MomentumTransportModels/momentumTransportModels/LES/DeardorffDiffStress/DeardorffDiffStress.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -40,7 +40,7 @@ Description
     simulate the behaviour of B.
 
     This implementation is as described in the above paper except that the
-    triple correlation model of Donaldson is replaced with the generalized
+    triple correlation model of Donaldson is replaced with the generalised
     gradient diffusion model of Daly and Harlow:
     \verbatim
         Daly, B. J., & Harlow, F. H. (1970).
diff --git a/src/MomentumTransportModels/momentumTransportModels/Make/files b/src/MomentumTransportModels/momentumTransportModels/Make/files
index cc98b523e1..1c0050e8ad 100644
--- a/src/MomentumTransportModels/momentumTransportModels/Make/files
+++ b/src/MomentumTransportModels/momentumTransportModels/Make/files
@@ -62,14 +62,14 @@ RASBCs = RAS/derivedFvPatchFields
 $(RASBCs)/turbulentMixingLengthDissipationRateInlet/turbulentMixingLengthDissipationRateInletFvPatchScalarField.C
 $(RASBCs)/turbulentMixingLengthFrequencyInlet/turbulentMixingLengthFrequencyInletFvPatchScalarField.C
 
-generalizedNewtonianViscosityModels = laminar/generalizedNewtonian/generalizedNewtonianViscosityModels
-$(generalizedNewtonianViscosityModels)/generalizedNewtonianViscosityModel/generalizedNewtonianViscosityModel.C
-$(generalizedNewtonianViscosityModels)/generalizedNewtonianViscosityModel/generalizedNewtonianViscosityModelNew.C
-$(generalizedNewtonianViscosityModels)/CrossPowerLaw/CrossPowerLaw.C
-$(generalizedNewtonianViscosityModels)/BirdCarreau/BirdCarreau.C
-$(generalizedNewtonianViscosityModels)/Casson/Casson.C
-$(generalizedNewtonianViscosityModels)/HerschelBulkley/HerschelBulkley.C
-$(generalizedNewtonianViscosityModels)/powerLaw/powerLaw.C
-$(generalizedNewtonianViscosityModels)/strainRateFunction/strainRateFunction.C
+generalisedNewtonianViscosityModels = laminar/generalisedNewtonian/generalisedNewtonianViscosityModels
+$(generalisedNewtonianViscosityModels)/generalisedNewtonianViscosityModel/generalisedNewtonianViscosityModel.C
+$(generalisedNewtonianViscosityModels)/generalisedNewtonianViscosityModel/generalisedNewtonianViscosityModelNew.C
+$(generalisedNewtonianViscosityModels)/CrossPowerLaw/CrossPowerLaw.C
+$(generalisedNewtonianViscosityModels)/BirdCarreau/BirdCarreau.C
+$(generalisedNewtonianViscosityModels)/Casson/Casson.C
+$(generalisedNewtonianViscosityModels)/HerschelBulkley/HerschelBulkley.C
+$(generalisedNewtonianViscosityModels)/powerLaw/powerLaw.C
+$(generalisedNewtonianViscosityModels)/strainRateFunction/strainRateFunction.C
 
 LIB = $(FOAM_LIBBIN)/libmomentumTransportModels
diff --git a/src/MomentumTransportModels/momentumTransportModels/RAS/LRR/LRR.H b/src/MomentumTransportModels/momentumTransportModels/RAS/LRR/LRR.H
index f9a173672b..1d6d5c8d78 100644
--- a/src/MomentumTransportModels/momentumTransportModels/RAS/LRR/LRR.H
+++ b/src/MomentumTransportModels/momentumTransportModels/RAS/LRR/LRR.H
@@ -35,7 +35,7 @@ Description
         Journal of fluid mechanics, 68(03), 537-566.
     \endverbatim
 
-    Including the recommended generalized gradient diffusion model of
+    Including the recommended generalised gradient diffusion model of
     Daly and Harlow:
     \verbatim
         Daly, B. J., & Harlow, F. H. (1970).
diff --git a/src/MomentumTransportModels/momentumTransportModels/RAS/RNGkEpsilon/RNGkEpsilon.H b/src/MomentumTransportModels/momentumTransportModels/RAS/RNGkEpsilon/RNGkEpsilon.H
index 0ecdd078b0..8372b243c9 100644
--- a/src/MomentumTransportModels/momentumTransportModels/RAS/RNGkEpsilon/RNGkEpsilon.H
+++ b/src/MomentumTransportModels/momentumTransportModels/RAS/RNGkEpsilon/RNGkEpsilon.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::RASModels::RNGkEpsilon
 
 Description
-    Renormalization group k-epsilon turbulence model for incompressible and
+    Renormalisation group k-epsilon turbulence model for incompressible and
     compressible flows.
 
     Reference:
diff --git a/src/MomentumTransportModels/momentumTransportModels/RAS/SSG/SSG.H b/src/MomentumTransportModels/momentumTransportModels/RAS/SSG/SSG.H
index dba6e361e2..6461c17d74 100644
--- a/src/MomentumTransportModels/momentumTransportModels/RAS/SSG/SSG.H
+++ b/src/MomentumTransportModels/momentumTransportModels/RAS/SSG/SSG.H
@@ -36,7 +36,7 @@ Description
         Journal of Fluid Mechanics, 227, 245-272.
     \endverbatim
 
-    Including the generalized gradient diffusion model of
+    Including the generalised gradient diffusion model of
     Daly and Harlow:
     \verbatim
         Daly, B. J., & Harlow, F. H. (1970).
diff --git a/src/MomentumTransportModels/momentumTransportModels/RAS/kOmegaSSTLM/kOmegaSSTLM.H b/src/MomentumTransportModels/momentumTransportModels/RAS/kOmegaSSTLM/kOmegaSSTLM.H
index ac49f49eac..fe468d41f6 100644
--- a/src/MomentumTransportModels/momentumTransportModels/RAS/kOmegaSSTLM/kOmegaSSTLM.H
+++ b/src/MomentumTransportModels/momentumTransportModels/RAS/kOmegaSSTLM/kOmegaSSTLM.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -124,7 +124,7 @@ protected:
             //- Maximum number of iterations to converge the lambda/thetat loop
             label maxLambdaIter_;
 
-            //- Stabilization for division by the magnitude of the velocity
+            //- Stabilisation for division by the magnitude of the velocity
             const dimensionedScalar deltaU_;
 
 
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/Maxwell/Maxwell.H b/src/MomentumTransportModels/momentumTransportModels/laminar/Maxwell/Maxwell.H
index 0f34f3426c..47af517f53 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/Maxwell/Maxwell.H
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/Maxwell/Maxwell.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -29,7 +29,7 @@ Description
     derivative of the stress tensor with support for multiple modes.
 
     See http://en.wikipedia.org/wiki/Upper-convected_Maxwell_model
-        http://en.wikipedia.org/wiki/Generalized_Maxwell_model
+        http://en.wikipedia.org/wiki/Generalised_Maxwell_model
 
     The model includes an additional viscosity (nu) from the transport
     model from which it is instantiated, which makes it equivalent to
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonian.C b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonian.C
similarity index 87%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonian.C
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonian.C
index db65be93a5..8a6c0d837a 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonian.C
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonian.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,7 +23,7 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "generalizedNewtonian.H"
+#include "generalisedNewtonian.H"
 #include "volFields.H"
 #include "surfaceFields.H"
 #include "fvcGrad.H"
@@ -40,7 +40,7 @@ namespace laminarModels
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
 template<class BasicMomentumTransportModel>
-generalizedNewtonian<BasicMomentumTransportModel>::generalizedNewtonian
+generalisedNewtonian<BasicMomentumTransportModel>::generalisedNewtonian
 (
     const alphaField& alpha,
     const rhoField& rho,
@@ -63,7 +63,7 @@ generalizedNewtonian<BasicMomentumTransportModel>::generalizedNewtonian
 
     viscosityModel_
     (
-        generalizedNewtonianViscosityModel::New
+        generalisedNewtonianViscosityModel::New
         (
             this->coeffDict_
         )
@@ -92,7 +92,7 @@ generalizedNewtonian<BasicMomentumTransportModel>::generalizedNewtonian
 
 template<class BasicMomentumTransportModel>
 tmp<volScalarField>
-generalizedNewtonian<BasicMomentumTransportModel>::strainRate() const
+generalisedNewtonian<BasicMomentumTransportModel>::strainRate() const
 {
     return sqrt(2.0)*mag(symm(fvc::grad(this->U())));
 }
@@ -101,7 +101,7 @@ generalizedNewtonian<BasicMomentumTransportModel>::strainRate() const
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
 template<class BasicMomentumTransportModel>
-bool generalizedNewtonian<BasicMomentumTransportModel>::read()
+bool generalisedNewtonian<BasicMomentumTransportModel>::read()
 {
     viscosityModel_->read(this->coeffDict_);
 
@@ -111,7 +111,7 @@ bool generalizedNewtonian<BasicMomentumTransportModel>::read()
 
 template<class BasicMomentumTransportModel>
 tmp<volScalarField>
-generalizedNewtonian<BasicMomentumTransportModel>::nuEff() const
+generalisedNewtonian<BasicMomentumTransportModel>::nuEff() const
 {
     return volScalarField::New
     (
@@ -123,7 +123,7 @@ generalizedNewtonian<BasicMomentumTransportModel>::nuEff() const
 
 template<class BasicMomentumTransportModel>
 tmp<scalarField>
-generalizedNewtonian<BasicMomentumTransportModel>::nuEff
+generalisedNewtonian<BasicMomentumTransportModel>::nuEff
 (
     const label patchi
 ) const
@@ -133,7 +133,7 @@ generalizedNewtonian<BasicMomentumTransportModel>::nuEff
 
 
 template<class BasicMomentumTransportModel>
-void generalizedNewtonian<BasicMomentumTransportModel>::correct()
+void generalisedNewtonian<BasicMomentumTransportModel>::correct()
 {
     nu_ = viscosityModel_->nu(this->nu(), strainRate());
     laminarModel<BasicMomentumTransportModel>::correct();
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonian.H b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonian.H
similarity index 84%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonian.H
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonian.H
index 51d1ac3637..d72ba51366 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonian.H
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonian.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,22 +22,22 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::laminarModels::generalizedNewtonian
+    Foam::laminarModels::generalisedNewtonian
 
 Description
     Momentum transport model for shear-dependent Non-Newtonian flow.
 
 SourceFiles
-    generalizedNewtonian.C
+    generalisedNewtonian.C
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef generalizedNewtonian_H
-#define generalizedNewtonian_H
+#ifndef generalisedNewtonian_H
+#define generalisedNewtonian_H
 
 #include "laminarModel.H"
 #include "linearViscousStress.H"
-#include "generalizedNewtonianViscosityModel.H"
+#include "generalisedNewtonianViscosityModel.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
@@ -47,11 +47,11 @@ namespace laminarModels
 {
 
 /*---------------------------------------------------------------------------*\
-                    Class generalizedNewtonian Declaration
+                    Class generalisedNewtonian Declaration
 \*---------------------------------------------------------------------------*/
 
 template<class BasicMomentumTransportModel>
-class generalizedNewtonian
+class generalisedNewtonian
 :
     public linearViscousStress<laminarModel<BasicMomentumTransportModel>>
 {
@@ -61,7 +61,7 @@ protected:
     // Protected data
 
         //- Run-time selectable non-Newtonian viscosity model
-        autoPtr<generalizedNewtonianViscosityModel> viscosityModel_;
+        autoPtr<generalisedNewtonianViscosityModel> viscosityModel_;
 
         //- The non-Newtonian viscosity field
         volScalarField nu_;
@@ -80,13 +80,13 @@ public:
 
 
     //- Runtime type information
-    TypeName("generalizedNewtonian");
+    TypeName("generalisedNewtonian");
 
 
     // Constructors
 
         //- Construct from components
-        generalizedNewtonian
+        generalisedNewtonian
         (
             const alphaField& alpha,
             const rhoField& rho,
@@ -100,7 +100,7 @@ public:
     // Selectors
 
         //- Return a reference to the selected turbulence model
-        static autoPtr<generalizedNewtonian> New
+        static autoPtr<generalisedNewtonian> New
         (
             const alphaField& alpha,
             const rhoField& rho,
@@ -112,7 +112,7 @@ public:
 
 
     //- Destructor
-    virtual ~generalizedNewtonian()
+    virtual ~generalisedNewtonian()
     {}
 
 
@@ -122,13 +122,13 @@ public:
         virtual bool read();
 
         //- Return the effective viscosity
-        //  i.e. the generalizedNewtonian viscosity
+        //  i.e. the generalisedNewtonian viscosity
         virtual tmp<volScalarField> nuEff() const;
 
         //- Return the effective viscosity on patch
         virtual tmp<scalarField> nuEff(const label patchi) const;
 
-        //- Correct the generalizedNewtonian viscosity
+        //- Correct the generalisedNewtonian viscosity
         virtual void correct();
 };
 
@@ -141,7 +141,7 @@ public:
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 #ifdef NoRepository
-    #include "generalizedNewtonian.C"
+    #include "generalisedNewtonian.C"
 #endif
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/BirdCarreau/BirdCarreau.C b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/BirdCarreau/BirdCarreau.C
similarity index 87%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/BirdCarreau/BirdCarreau.C
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/BirdCarreau/BirdCarreau.C
index 6a87f9da11..29de1af7e0 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/BirdCarreau/BirdCarreau.C
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/BirdCarreau/BirdCarreau.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -33,12 +33,12 @@ namespace Foam
 {
 namespace laminarModels
 {
-namespace generalizedNewtonianViscosityModels
+namespace generalisedNewtonianViscosityModels
 {
     defineTypeNameAndDebug(BirdCarreau, 0);
     addToRunTimeSelectionTable
     (
-        generalizedNewtonianViscosityModel,
+        generalisedNewtonianViscosityModel,
         BirdCarreau,
         dictionary
     );
@@ -49,13 +49,13 @@ namespace generalizedNewtonianViscosityModels
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
-Foam::laminarModels::generalizedNewtonianViscosityModels::BirdCarreau::
+Foam::laminarModels::generalisedNewtonianViscosityModels::BirdCarreau::
 BirdCarreau
 (
     const dictionary& viscosityProperties
 )
 :
-    generalizedNewtonianViscosityModel(viscosityProperties),
+    generalisedNewtonianViscosityModel(viscosityProperties),
     nuInf_("nuInf", dimViscosity, 0),
     k_("k", dimTime, 0),
     tauStar_( "tauStar", dimViscosity/dimTime, 0),
@@ -68,13 +68,13 @@ BirdCarreau
 
 // * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
-bool Foam::laminarModels::generalizedNewtonianViscosityModels::BirdCarreau::
+bool Foam::laminarModels::generalisedNewtonianViscosityModels::BirdCarreau::
 read
 (
     const dictionary& viscosityProperties
 )
 {
-    generalizedNewtonianViscosityModel::read(viscosityProperties);
+    generalisedNewtonianViscosityModel::read(viscosityProperties);
 
     const dictionary& coeffs =
         viscosityProperties.optionalSubDict(typeName + "Coeffs");
@@ -103,7 +103,7 @@ read
 
 
 Foam::tmp<Foam::volScalarField>
-Foam::laminarModels::generalizedNewtonianViscosityModels::BirdCarreau::
+Foam::laminarModels::generalisedNewtonianViscosityModels::BirdCarreau::
 nu
 (
     const volScalarField& nu0,
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/BirdCarreau/BirdCarreau.H b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/BirdCarreau/BirdCarreau.H
similarity index 90%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/BirdCarreau/BirdCarreau.H
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/BirdCarreau/BirdCarreau.H
index 9f47b36835..9eeba0a642 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/BirdCarreau/BirdCarreau.H
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/BirdCarreau/BirdCarreau.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,10 +22,10 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::laminarModels::generalizedNewtonianViscosityModels::BirdCarreau
+    Foam::laminarModels::generalisedNewtonianViscosityModels::BirdCarreau
 
 Description
-    Bird-Carreau generalized Newtonian viscosity model
+    Bird-Carreau generalised Newtonian viscosity model
 
     The Bird-Carreau-Yasuda form is also supported if the optional \c a
     coefficient is specified.  \c a defaults to 2 for the Bird-Carreau model.
@@ -67,7 +67,7 @@ SourceFiles
 #ifndef BirdCarreau_H
 #define BirdCarreau_H
 
-#include "generalizedNewtonianViscosityModel.H"
+#include "generalisedNewtonianViscosityModel.H"
 #include "dimensionedScalar.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -76,7 +76,7 @@ namespace Foam
 {
 namespace laminarModels
 {
-namespace generalizedNewtonianViscosityModels
+namespace generalisedNewtonianViscosityModels
 {
 
 /*---------------------------------------------------------------------------*\
@@ -85,7 +85,7 @@ namespace generalizedNewtonianViscosityModels
 
 class BirdCarreau
 :
-    public generalizedNewtonianViscosityModel
+    public generalisedNewtonianViscosityModel
 {
     // Private Data
 
@@ -129,7 +129,7 @@ public:
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-} // End namespace generalizedNewtonianViscosityModels
+} // End namespace generalisedNewtonianViscosityModels
 } // End namespace laminarModels
 } // End namespace Foam
 
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/Casson/Casson.C b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/Casson/Casson.C
similarity index 86%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/Casson/Casson.C
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/Casson/Casson.C
index aa1ed02b18..40fb84a2b2 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/Casson/Casson.C
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/Casson/Casson.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -33,12 +33,12 @@ namespace Foam
 {
 namespace laminarModels
 {
-namespace generalizedNewtonianViscosityModels
+namespace generalisedNewtonianViscosityModels
 {
     defineTypeNameAndDebug(Casson, 0);
     addToRunTimeSelectionTable
     (
-        generalizedNewtonianViscosityModel,
+        generalisedNewtonianViscosityModel,
         Casson,
         dictionary
     );
@@ -49,12 +49,12 @@ namespace generalizedNewtonianViscosityModels
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
-Foam::laminarModels::generalizedNewtonianViscosityModels::Casson::Casson
+Foam::laminarModels::generalisedNewtonianViscosityModels::Casson::Casson
 (
     const dictionary& viscosityProperties
 )
 :
-    generalizedNewtonianViscosityModel(viscosityProperties),
+    generalisedNewtonianViscosityModel(viscosityProperties),
     m_("m", dimViscosity, 0),
     tau0_("tau0", dimViscosity/dimTime, 0),
     nuMin_("nuMin", dimViscosity, 0),
@@ -66,12 +66,12 @@ Foam::laminarModels::generalizedNewtonianViscosityModels::Casson::Casson
 
 // * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
-bool Foam::laminarModels::generalizedNewtonianViscosityModels::Casson::read
+bool Foam::laminarModels::generalisedNewtonianViscosityModels::Casson::read
 (
     const dictionary& viscosityProperties
 )
 {
-    generalizedNewtonianViscosityModel::read(viscosityProperties);
+    generalisedNewtonianViscosityModel::read(viscosityProperties);
 
     const dictionary& coeffs =
         viscosityProperties.optionalSubDict(typeName + "Coeffs");
@@ -86,7 +86,7 @@ bool Foam::laminarModels::generalizedNewtonianViscosityModels::Casson::read
 
 
 Foam::tmp<Foam::volScalarField>
-Foam::laminarModels::generalizedNewtonianViscosityModels::Casson::
+Foam::laminarModels::generalisedNewtonianViscosityModels::Casson::
 nu
 (
     const volScalarField& nu0,
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/Casson/Casson.H b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/Casson/Casson.H
similarity index 88%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/Casson/Casson.H
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/Casson/Casson.H
index 7b9a298069..c7e8334cac 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/Casson/Casson.H
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/Casson/Casson.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,16 +22,16 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::laminarModels::generalizedNewtonianViscosityModels::Casson
+    Foam::laminarModels::generalisedNewtonianViscosityModels::Casson
 
 Description
-    Casson generalized Newtonian viscosity model
+    Casson generalised Newtonian viscosity model
 
     References:
     \verbatim
         Casson, N. (1959).
         Rheology of disperse systems.
-        In Proceedings of a Conference Organized by the
+        In Proceedings of a Conference Organised by the
         British Society of Rheology.
         Pergamon Press, New York.
 
@@ -58,7 +58,7 @@ SourceFiles
 #ifndef Casson_H
 #define Casson_H
 
-#include "generalizedNewtonianViscosityModel.H"
+#include "generalisedNewtonianViscosityModel.H"
 #include "dimensionedScalar.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -67,7 +67,7 @@ namespace Foam
 {
 namespace laminarModels
 {
-namespace generalizedNewtonianViscosityModels
+namespace generalisedNewtonianViscosityModels
 {
 
 
@@ -77,7 +77,7 @@ namespace generalizedNewtonianViscosityModels
 
 class Casson
 :
-    public generalizedNewtonianViscosityModel
+    public generalisedNewtonianViscosityModel
 {
     // Private Data
 
@@ -120,7 +120,7 @@ public:
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-} // End namespace generalizedNewtonianViscosityModels
+} // End namespace generalisedNewtonianViscosityModels
 } // End namespace laminarModels
 } // End namespace Foam
 
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/CrossPowerLaw/CrossPowerLaw.C b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/CrossPowerLaw/CrossPowerLaw.C
similarity index 86%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/CrossPowerLaw/CrossPowerLaw.C
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/CrossPowerLaw/CrossPowerLaw.C
index 9602de1092..95df78c772 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/CrossPowerLaw/CrossPowerLaw.C
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/CrossPowerLaw/CrossPowerLaw.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -33,13 +33,13 @@ namespace Foam
 {
 namespace laminarModels
 {
-namespace generalizedNewtonianViscosityModels
+namespace generalisedNewtonianViscosityModels
 {
     defineTypeNameAndDebug(CrossPowerLaw, 0);
 
     addToRunTimeSelectionTable
     (
-        generalizedNewtonianViscosityModel,
+        generalisedNewtonianViscosityModel,
         CrossPowerLaw,
         dictionary
     );
@@ -50,13 +50,13 @@ namespace generalizedNewtonianViscosityModels
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
-Foam::laminarModels::generalizedNewtonianViscosityModels::CrossPowerLaw::
+Foam::laminarModels::generalisedNewtonianViscosityModels::CrossPowerLaw::
 CrossPowerLaw
 (
     const dictionary& viscosityProperties
 )
 :
-    generalizedNewtonianViscosityModel(viscosityProperties),
+    generalisedNewtonianViscosityModel(viscosityProperties),
     nuInf_("nuInf", dimViscosity, 0),
     m_("m", dimTime, 0),
     tauStar_( "tauStar", dimViscosity/dimTime, 0),
@@ -68,13 +68,13 @@ CrossPowerLaw
 
 // * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
-bool Foam::laminarModels::generalizedNewtonianViscosityModels::CrossPowerLaw::
+bool Foam::laminarModels::generalisedNewtonianViscosityModels::CrossPowerLaw::
 read
 (
     const dictionary& viscosityProperties
 )
 {
-    generalizedNewtonianViscosityModel::read(viscosityProperties);
+    generalisedNewtonianViscosityModel::read(viscosityProperties);
 
     const dictionary& coeffs =
         viscosityProperties.optionalSubDict(typeName + "Coeffs");
@@ -97,7 +97,7 @@ read
 
 
 Foam::tmp<Foam::volScalarField>
-Foam::laminarModels::generalizedNewtonianViscosityModels::CrossPowerLaw::
+Foam::laminarModels::generalisedNewtonianViscosityModels::CrossPowerLaw::
 nu
 (
     const volScalarField& nu0,
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/CrossPowerLaw/CrossPowerLaw.H b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/CrossPowerLaw/CrossPowerLaw.H
similarity index 89%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/CrossPowerLaw/CrossPowerLaw.H
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/CrossPowerLaw/CrossPowerLaw.H
index c35b39399f..359941e2b3 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/CrossPowerLaw/CrossPowerLaw.H
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/CrossPowerLaw/CrossPowerLaw.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,10 +22,10 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::laminarModels::generalizedNewtonianViscosityModels::CrossPowerLaw
+    Foam::laminarModels::generalisedNewtonianViscosityModels::CrossPowerLaw
 
 Description
-    Cross-Power law generalized Newtonian viscosity model
+    Cross-Power law generalised Newtonian viscosity model
 
     The strain rate coefficient can be specified either as the constant \c m or
     the critical stress level at the transition to shear thinning \c
@@ -62,7 +62,7 @@ SourceFiles
 #ifndef CrossPowerLaw_H
 #define CrossPowerLaw_H
 
-#include "generalizedNewtonianViscosityModel.H"
+#include "generalisedNewtonianViscosityModel.H"
 #include "dimensionedScalar.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -71,7 +71,7 @@ namespace Foam
 {
 namespace laminarModels
 {
-namespace generalizedNewtonianViscosityModels
+namespace generalisedNewtonianViscosityModels
 {
 
 /*---------------------------------------------------------------------------*\
@@ -80,7 +80,7 @@ namespace generalizedNewtonianViscosityModels
 
 class CrossPowerLaw
 :
-    public generalizedNewtonianViscosityModel
+    public generalisedNewtonianViscosityModel
 {
     // Private Data
 
@@ -123,7 +123,7 @@ public:
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-} // End namespace generalizedNewtonianViscosityModels
+} // End namespace generalisedNewtonianViscosityModels
 } // End namespace laminarModels
 } // End namespace Foam
 
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/HerschelBulkley/HerschelBulkley.C b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/HerschelBulkley/HerschelBulkley.C
similarity index 86%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/HerschelBulkley/HerschelBulkley.C
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/HerschelBulkley/HerschelBulkley.C
index 58670a7d5a..0629486edb 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/HerschelBulkley/HerschelBulkley.C
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/HerschelBulkley/HerschelBulkley.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -33,13 +33,13 @@ namespace Foam
 {
 namespace laminarModels
 {
-namespace generalizedNewtonianViscosityModels
+namespace generalisedNewtonianViscosityModels
 {
     defineTypeNameAndDebug(HerschelBulkley, 0);
 
     addToRunTimeSelectionTable
     (
-        generalizedNewtonianViscosityModel,
+        generalisedNewtonianViscosityModel,
         HerschelBulkley,
         dictionary
     );
@@ -50,13 +50,13 @@ namespace generalizedNewtonianViscosityModels
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
-Foam::laminarModels::generalizedNewtonianViscosityModels::HerschelBulkley::
+Foam::laminarModels::generalisedNewtonianViscosityModels::HerschelBulkley::
 HerschelBulkley
 (
     const dictionary& viscosityProperties
 )
 :
-    generalizedNewtonianViscosityModel(viscosityProperties),
+    generalisedNewtonianViscosityModel(viscosityProperties),
     k_("k", dimViscosity, 0),
     n_("n", dimless, 0),
     tau0_("tau0", dimViscosity/dimTime, 0)
@@ -67,13 +67,13 @@ HerschelBulkley
 
 // * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
-bool Foam::laminarModels::generalizedNewtonianViscosityModels::
+bool Foam::laminarModels::generalisedNewtonianViscosityModels::
 HerschelBulkley::read
 (
     const dictionary& viscosityProperties
 )
 {
-    generalizedNewtonianViscosityModel::read(viscosityProperties);
+    generalisedNewtonianViscosityModel::read(viscosityProperties);
 
     const dictionary& coeffs =
         viscosityProperties.optionalSubDict(typeName + "Coeffs");
@@ -87,7 +87,7 @@ HerschelBulkley::read
 
 
 Foam::tmp<Foam::volScalarField>
-Foam::laminarModels::generalizedNewtonianViscosityModels::HerschelBulkley::
+Foam::laminarModels::generalisedNewtonianViscosityModels::HerschelBulkley::
 nu
 (
     const volScalarField& nu0,
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/HerschelBulkley/HerschelBulkley.H b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/HerschelBulkley/HerschelBulkley.H
similarity index 87%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/HerschelBulkley/HerschelBulkley.H
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/HerschelBulkley/HerschelBulkley.H
index 7e479971bc..c01ae3a2bf 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/HerschelBulkley/HerschelBulkley.H
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/HerschelBulkley/HerschelBulkley.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,10 +22,10 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::laminarModels::generalizedNewtonianViscosityModels::HerschelBulkley
+    Foam::laminarModels::generalisedNewtonianViscosityModels::HerschelBulkley
 
 Description
-    Herschel-Bulkley generalized Newtonian viscosity model
+    Herschel-Bulkley generalised Newtonian viscosity model
 
 SourceFiles
     HerschelBulkley.C
@@ -35,7 +35,7 @@ SourceFiles
 #ifndef HerschelBulkley_H
 #define HerschelBulkley_H
 
-#include "generalizedNewtonianViscosityModel.H"
+#include "generalisedNewtonianViscosityModel.H"
 #include "dimensionedScalar.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -44,7 +44,7 @@ namespace Foam
 {
 namespace laminarModels
 {
-namespace generalizedNewtonianViscosityModels
+namespace generalisedNewtonianViscosityModels
 {
 
 /*---------------------------------------------------------------------------*\
@@ -53,7 +53,7 @@ namespace generalizedNewtonianViscosityModels
 
 class HerschelBulkley
 :
-    public generalizedNewtonianViscosityModel
+    public generalisedNewtonianViscosityModel
 {
     // Private Data
 
@@ -95,7 +95,7 @@ public:
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-} // End namespace generalizedNewtonianViscosityModels
+} // End namespace generalisedNewtonianViscosityModels
 } // End namespace laminarModels
 } // End namespace Foam
 
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/generalizedNewtonianViscosityModel/generalizedNewtonianViscosityModel.C b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/generalisedNewtonianViscosityModel/generalisedNewtonianViscosityModel.C
similarity index 81%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/generalizedNewtonianViscosityModel/generalizedNewtonianViscosityModel.C
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/generalisedNewtonianViscosityModel/generalisedNewtonianViscosityModel.C
index 610beb826f..1528ade872 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/generalizedNewtonianViscosityModel/generalizedNewtonianViscosityModel.C
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/generalisedNewtonianViscosityModel/generalisedNewtonianViscosityModel.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,7 +23,7 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "generalizedNewtonianViscosityModel.H"
+#include "generalisedNewtonianViscosityModel.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
@@ -31,16 +31,16 @@ namespace Foam
 {
 namespace laminarModels
 {
-    defineTypeNameAndDebug(generalizedNewtonianViscosityModel, 0);
-    defineRunTimeSelectionTable(generalizedNewtonianViscosityModel, dictionary);
+    defineTypeNameAndDebug(generalisedNewtonianViscosityModel, 0);
+    defineRunTimeSelectionTable(generalisedNewtonianViscosityModel, dictionary);
 }
 }
 
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
-Foam::laminarModels::generalizedNewtonianViscosityModel::
-generalizedNewtonianViscosityModel
+Foam::laminarModels::generalisedNewtonianViscosityModel::
+generalisedNewtonianViscosityModel
 (
     const dictionary& viscosityProperties
 )
@@ -51,7 +51,7 @@ generalizedNewtonianViscosityModel
 
 // * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
-bool Foam::laminarModels::generalizedNewtonianViscosityModel::read
+bool Foam::laminarModels::generalisedNewtonianViscosityModel::read
 (
     const dictionary& viscosityProperties
 )
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/generalizedNewtonianViscosityModel/generalizedNewtonianViscosityModel.H b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/generalisedNewtonianViscosityModel/generalisedNewtonianViscosityModel.H
similarity index 76%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/generalizedNewtonianViscosityModel/generalizedNewtonianViscosityModel.H
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/generalisedNewtonianViscosityModel/generalisedNewtonianViscosityModel.H
index 942c01a20f..611bdbac35 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/generalizedNewtonianViscosityModel/generalizedNewtonianViscosityModel.H
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/generalisedNewtonianViscosityModel/generalisedNewtonianViscosityModel.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,26 +22,26 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Namespace
-    Foam::laminarModels::generalizedNewtonianViscosityModels
+    Foam::laminarModels::generalisedNewtonianViscosityModels
 
 Description
-    A namespace for various generalized Newtonian viscosity model
+    A namespace for various generalised Newtonian viscosity model
     implementations.
 
 Class
-    Foam::laminarModels::generalizedNewtonianViscosityModel
+    Foam::laminarModels::generalisedNewtonianViscosityModel
 
 Description
-    An abstract base class for generalized Newtonian viscosity models.
+    An abstract base class for generalised Newtonian viscosity models.
 
 SourceFiles
-    generalizedNewtonianViscosityModel.C
-    generalizedNewtonianViscosityModelNew.C
+    generalisedNewtonianViscosityModel.C
+    generalisedNewtonianViscosityModelNew.C
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef generalizedNewtonianViscosityModel_H
-#define generalizedNewtonianViscosityModel_H
+#ifndef generalisedNewtonianViscosityModel_H
+#define generalisedNewtonianViscosityModel_H
 
 #include "dictionary.H"
 #include "volFieldsFwd.H"
@@ -55,10 +55,10 @@ namespace laminarModels
 {
 
 /*---------------------------------------------------------------------------*\
-             Class generalizedNewtonianViscosityModel Declaration
+             Class generalisedNewtonianViscosityModel Declaration
 \*---------------------------------------------------------------------------*/
 
-class generalizedNewtonianViscosityModel
+class generalisedNewtonianViscosityModel
 {
 protected:
 
@@ -70,7 +70,7 @@ protected:
 public:
 
     //- Runtime type information
-    TypeName("generalizedNewtonianViscosityModel");
+    TypeName("generalisedNewtonianViscosityModel");
 
 
     // Declare run-time constructor selection table
@@ -78,7 +78,7 @@ public:
         declareRunTimeSelectionTable
         (
             autoPtr,
-            generalizedNewtonianViscosityModel,
+            generalisedNewtonianViscosityModel,
             dictionary,
             (
                 const dictionary& viscosityProperties
@@ -90,7 +90,7 @@ public:
     // Selectors
 
         //- Return a reference to the selected viscosity model
-        static autoPtr<generalizedNewtonianViscosityModel> New
+        static autoPtr<generalisedNewtonianViscosityModel> New
         (
             const dictionary& viscosityProperties
         );
@@ -99,20 +99,20 @@ public:
     // Constructors
 
         //- Construct from components
-        generalizedNewtonianViscosityModel
+        generalisedNewtonianViscosityModel
         (
             const dictionary& viscosityProperties
         );
 
         //- Disallow default bitwise copy construction
-        generalizedNewtonianViscosityModel
+        generalisedNewtonianViscosityModel
         (
-            const generalizedNewtonianViscosityModel&
+            const generalisedNewtonianViscosityModel&
         );
 
 
     //- Destructor
-    virtual ~generalizedNewtonianViscosityModel()
+    virtual ~generalisedNewtonianViscosityModel()
     {}
 
 
@@ -138,7 +138,7 @@ public:
     // Member Operators
 
         //- Disallow default bitwise assignment
-        void operator=(const generalizedNewtonianViscosityModel&) = delete;
+        void operator=(const generalisedNewtonianViscosityModel&) = delete;
 };
 
 
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/generalizedNewtonianViscosityModel/generalizedNewtonianViscosityModelNew.C b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/generalisedNewtonianViscosityModel/generalisedNewtonianViscosityModelNew.C
similarity index 79%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/generalizedNewtonianViscosityModel/generalizedNewtonianViscosityModelNew.C
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/generalisedNewtonianViscosityModel/generalisedNewtonianViscosityModelNew.C
index 6921139636..202a635802 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/generalizedNewtonianViscosityModel/generalizedNewtonianViscosityModelNew.C
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/generalisedNewtonianViscosityModel/generalisedNewtonianViscosityModelNew.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,12 +23,12 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "generalizedNewtonianViscosityModel.H"
+#include "generalisedNewtonianViscosityModel.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-Foam::autoPtr<Foam::laminarModels::generalizedNewtonianViscosityModel>
-Foam::laminarModels::generalizedNewtonianViscosityModel::New
+Foam::autoPtr<Foam::laminarModels::generalisedNewtonianViscosityModel>
+Foam::laminarModels::generalisedNewtonianViscosityModel::New
 (
     const dictionary& viscosityProperties
 )
@@ -38,7 +38,7 @@ Foam::laminarModels::generalizedNewtonianViscosityModel::New
         viscosityProperties.lookup("viscosityModel")
     );
 
-    Info<< "Selecting generalized Newtonian model " << modelType << endl;
+    Info<< "Selecting generalised Newtonian model " << modelType << endl;
 
     dictionaryConstructorTable::iterator cstrIter =
         dictionaryConstructorTablePtr_->find(modelType);
@@ -46,14 +46,14 @@ Foam::laminarModels::generalizedNewtonianViscosityModel::New
     if (cstrIter == dictionaryConstructorTablePtr_->end())
     {
         FatalErrorInFunction
-            << "Unknown generalizedNewtonianViscosityModel type "
+            << "Unknown generalisedNewtonianViscosityModel type "
             << modelType << nl << nl
-            << "Valid generalizedNewtonianViscosityModels are : " << endl
+            << "Valid generalisedNewtonianViscosityModels are : " << endl
             << dictionaryConstructorTablePtr_->sortedToc()
             << exit(FatalError);
     }
 
-    return autoPtr<generalizedNewtonianViscosityModel>
+    return autoPtr<generalisedNewtonianViscosityModel>
     (
         cstrIter()(viscosityProperties)
     );
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/powerLaw/powerLaw.C b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/powerLaw/powerLaw.C
similarity index 86%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/powerLaw/powerLaw.C
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/powerLaw/powerLaw.C
index 2deca0ec5c..a240c02035 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/powerLaw/powerLaw.C
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/powerLaw/powerLaw.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -33,13 +33,13 @@ namespace Foam
 {
 namespace laminarModels
 {
-namespace generalizedNewtonianViscosityModels
+namespace generalisedNewtonianViscosityModels
 {
     defineTypeNameAndDebug(powerLaw, 0);
 
     addToRunTimeSelectionTable
     (
-        generalizedNewtonianViscosityModel,
+        generalisedNewtonianViscosityModel,
         powerLaw,
         dictionary
     );
@@ -50,12 +50,12 @@ namespace generalizedNewtonianViscosityModels
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
-Foam::laminarModels::generalizedNewtonianViscosityModels::powerLaw::powerLaw
+Foam::laminarModels::generalisedNewtonianViscosityModels::powerLaw::powerLaw
 (
     const dictionary& viscosityProperties
 )
 :
-    generalizedNewtonianViscosityModel(viscosityProperties),
+    generalisedNewtonianViscosityModel(viscosityProperties),
     k_("k", dimViscosity, 0),
     n_("n", dimless, 0),
     nuMin_("nuMin", dimViscosity, 0),
@@ -67,12 +67,12 @@ Foam::laminarModels::generalizedNewtonianViscosityModels::powerLaw::powerLaw
 
 // * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
-bool Foam::laminarModels::generalizedNewtonianViscosityModels::powerLaw::read
+bool Foam::laminarModels::generalisedNewtonianViscosityModels::powerLaw::read
 (
     const dictionary& viscosityProperties
 )
 {
-    generalizedNewtonianViscosityModel::read(viscosityProperties);
+    generalisedNewtonianViscosityModel::read(viscosityProperties);
 
     const dictionary& coeffs =
         viscosityProperties.optionalSubDict(typeName + "Coeffs");
@@ -87,7 +87,7 @@ bool Foam::laminarModels::generalizedNewtonianViscosityModels::powerLaw::read
 
 
 Foam::tmp<Foam::volScalarField>
-Foam::laminarModels::generalizedNewtonianViscosityModels::powerLaw::
+Foam::laminarModels::generalisedNewtonianViscosityModels::powerLaw::
 nu
 (
     const volScalarField& nu0,
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/powerLaw/powerLaw.H b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/powerLaw/powerLaw.H
similarity index 87%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/powerLaw/powerLaw.H
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/powerLaw/powerLaw.H
index 60ba5d533b..6afb55e79e 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/powerLaw/powerLaw.H
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/powerLaw/powerLaw.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,10 +22,10 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::laminarModels::generalizedNewtonianViscosityModels::powerLaw
+    Foam::laminarModels::generalisedNewtonianViscosityModels::powerLaw
 
 Description
-    Standard power-law generalized Newtonian viscosity model
+    Standard power-law generalised Newtonian viscosity model
 
 SourceFiles
     powerLaw.C
@@ -35,7 +35,7 @@ SourceFiles
 #ifndef powerLaw_H
 #define powerLaw_H
 
-#include "generalizedNewtonianViscosityModel.H"
+#include "generalisedNewtonianViscosityModel.H"
 #include "dimensionedScalar.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -44,7 +44,7 @@ namespace Foam
 {
 namespace laminarModels
 {
-namespace generalizedNewtonianViscosityModels
+namespace generalisedNewtonianViscosityModels
 {
 
 /*---------------------------------------------------------------------------*\
@@ -53,7 +53,7 @@ namespace generalizedNewtonianViscosityModels
 
 class powerLaw
 :
-    public generalizedNewtonianViscosityModel
+    public generalisedNewtonianViscosityModel
 {
     // Private Data
 
@@ -96,7 +96,7 @@ public:
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-} // End namespace generalizedNewtonianViscosityModels
+} // End namespace generalisedNewtonianViscosityModels
 } // End namespace laminarModels
 } // End namespace Foam
 
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/strainRateFunction/strainRateFunction.C b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/strainRateFunction/strainRateFunction.C
similarity index 87%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/strainRateFunction/strainRateFunction.C
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/strainRateFunction/strainRateFunction.C
index bdd2b96fbb..24bd341964 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/strainRateFunction/strainRateFunction.C
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/strainRateFunction/strainRateFunction.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -33,13 +33,13 @@ namespace Foam
 {
 namespace laminarModels
 {
-namespace generalizedNewtonianViscosityModels
+namespace generalisedNewtonianViscosityModels
 {
     defineTypeNameAndDebug(strainRateFunction, 0);
 
     addToRunTimeSelectionTable
     (
-        generalizedNewtonianViscosityModel,
+        generalisedNewtonianViscosityModel,
         strainRateFunction,
         dictionary
     );
@@ -50,13 +50,13 @@ namespace generalizedNewtonianViscosityModels
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
-Foam::laminarModels::generalizedNewtonianViscosityModels::strainRateFunction::
+Foam::laminarModels::generalisedNewtonianViscosityModels::strainRateFunction::
 strainRateFunction
 (
     const dictionary& viscosityProperties
 )
 :
-    generalizedNewtonianViscosityModel(viscosityProperties),
+    generalisedNewtonianViscosityModel(viscosityProperties),
     strainRateFunction_
     (
         Function1<scalar>::New
@@ -70,13 +70,13 @@ strainRateFunction
 
 // * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * * //
 
-bool Foam::laminarModels::generalizedNewtonianViscosityModels::
+bool Foam::laminarModels::generalisedNewtonianViscosityModels::
 strainRateFunction::read
 (
     const dictionary& viscosityProperties
 )
 {
-    generalizedNewtonianViscosityModel::read(viscosityProperties);
+    generalisedNewtonianViscosityModel::read(viscosityProperties);
 
     strainRateFunction_.clear();
     strainRateFunction_ = Function1<scalar>::New
@@ -93,7 +93,7 @@ strainRateFunction::read
 
 
 Foam::tmp<Foam::volScalarField>
-Foam::laminarModels::generalizedNewtonianViscosityModels::strainRateFunction::
+Foam::laminarModels::generalisedNewtonianViscosityModels::strainRateFunction::
 nu
 (
     const volScalarField& nu0,
diff --git a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/strainRateFunction/strainRateFunction.H b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/strainRateFunction/strainRateFunction.H
similarity index 85%
rename from src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/strainRateFunction/strainRateFunction.H
rename to src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/strainRateFunction/strainRateFunction.H
index 8e7ca878a8..5e82eaeb7e 100644
--- a/src/MomentumTransportModels/momentumTransportModels/laminar/generalizedNewtonian/generalizedNewtonianViscosityModels/strainRateFunction/strainRateFunction.H
+++ b/src/MomentumTransportModels/momentumTransportModels/laminar/generalisedNewtonian/generalisedNewtonianViscosityModels/strainRateFunction/strainRateFunction.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2018-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2018-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,20 +22,20 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::laminarModels::generalizedNewtonianViscosityModels::strainRateFunction
+    Foam::laminarModels::generalisedNewtonianViscosityModels::strainRateFunction
 
 Description
-    Run-time selected strain-rate function generalized Newtonian viscosity model
+    Run-time selected strain-rate function generalised Newtonian viscosity model
 
     Example linear function of strain-rate:
     \verbatim
-        generalizedNewtonianModel strainRateFunction;
+        generalisedNewtonianModel strainRateFunction;
 
         function polynomial ((0 0.1) (1 1.3));
     \endverbatim
 
 See also
-    Foam::generalizedNewtonianViscosityModel
+    Foam::generalisedNewtonianViscosityModel
     Foam::Function1
 
 SourceFiles
@@ -46,7 +46,7 @@ SourceFiles
 #ifndef strainRateFunction_H
 #define strainRateFunction_H
 
-#include "generalizedNewtonianViscosityModel.H"
+#include "generalisedNewtonianViscosityModel.H"
 #include "Function1.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -55,7 +55,7 @@ namespace Foam
 {
 namespace laminarModels
 {
-namespace generalizedNewtonianViscosityModels
+namespace generalisedNewtonianViscosityModels
 {
 
 /*---------------------------------------------------------------------------*\
@@ -64,7 +64,7 @@ namespace generalizedNewtonianViscosityModels
 
 class strainRateFunction
 :
-    public generalizedNewtonianViscosityModel
+    public generalisedNewtonianViscosityModel
 {
     // Private Data
 
@@ -105,7 +105,7 @@ public:
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-} // End namespace generalizedNewtonianViscosityModels
+} // End namespace generalisedNewtonianViscosityModels
 } // End namespace laminarModels
 } // End namespace Foam
 
diff --git a/src/MomentumTransportModels/phaseCompressible/phaseDynamicMomentumTransportModels/phaseDynamicMomentumTransportModels.C b/src/MomentumTransportModels/phaseCompressible/phaseDynamicMomentumTransportModels/phaseDynamicMomentumTransportModels.C
index 7b54fa5c23..aff9b64b8c 100644
--- a/src/MomentumTransportModels/phaseCompressible/phaseDynamicMomentumTransportModels/phaseDynamicMomentumTransportModels.C
+++ b/src/MomentumTransportModels/phaseCompressible/phaseDynamicMomentumTransportModels/phaseDynamicMomentumTransportModels.C
@@ -44,8 +44,8 @@ makeBaseMomentumTransportModel
 #include "Stokes.H"
 makeLaminarModel(Stokes);
 
-#include "generalizedNewtonian.H"
-makeLaminarModel(generalizedNewtonian);
+#include "generalisedNewtonian.H"
+makeLaminarModel(generalisedNewtonian);
 
 #include "lambdaThixotropic.H"
 makeLaminarModel(lambdaThixotropic);
diff --git a/src/MomentumTransportModels/phaseIncompressible/phaseKinematicMomentumTransportModels/phaseKinematicMomentumTransportModels.C b/src/MomentumTransportModels/phaseIncompressible/phaseKinematicMomentumTransportModels/phaseKinematicMomentumTransportModels.C
index 6b615def2b..19b72a9f83 100644
--- a/src/MomentumTransportModels/phaseIncompressible/phaseKinematicMomentumTransportModels/phaseKinematicMomentumTransportModels.C
+++ b/src/MomentumTransportModels/phaseIncompressible/phaseKinematicMomentumTransportModels/phaseKinematicMomentumTransportModels.C
@@ -44,8 +44,8 @@ makeBaseMomentumTransportModel
 #include "Stokes.H"
 makeLaminarModel(Stokes);
 
-#include "generalizedNewtonian.H"
-makeLaminarModel(generalizedNewtonian);
+#include "generalisedNewtonian.H"
+makeLaminarModel(generalisedNewtonian);
 
 #include "lambdaThixotropic.H"
 makeLaminarModel(lambdaThixotropic);
diff --git a/src/ODE/ODESolvers/Euler/Euler.C b/src/ODE/ODESolvers/Euler/Euler.C
index bf1f2a1b3f..84a0144a46 100644
--- a/src/ODE/ODESolvers/Euler/Euler.C
+++ b/src/ODE/ODESolvers/Euler/Euler.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -86,7 +86,7 @@ Foam::scalar Foam::Euler::solve
         y[i] = y0[i] + err_[i];
     }
 
-    return normalizeError(y0, y, err_);
+    return normaliseError(y0, y, err_);
 }
 
 
diff --git a/src/ODE/ODESolvers/EulerSI/EulerSI.C b/src/ODE/ODESolvers/EulerSI/EulerSI.C
index f4dcc466cf..6d094bbc9b 100644
--- a/src/ODE/ODESolvers/EulerSI/EulerSI.C
+++ b/src/ODE/ODESolvers/EulerSI/EulerSI.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -111,7 +111,7 @@ Foam::scalar Foam::EulerSI::solve
         y[i] = y0[i] + err_[i];
     }
 
-    return normalizeError(y0, y, err_);
+    return normaliseError(y0, y, err_);
 }
 
 
diff --git a/src/ODE/ODESolvers/ODESolver/ODESolver.C b/src/ODE/ODESolvers/ODESolver/ODESolver.C
index 2e794d9a99..85550fe869 100644
--- a/src/ODE/ODESolvers/ODESolver/ODESolver.C
+++ b/src/ODE/ODESolvers/ODESolver/ODESolver.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -36,7 +36,7 @@ namespace Foam
 
 // * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * * //
 
-Foam::scalar Foam::ODESolver::normalizeError
+Foam::scalar Foam::ODESolver::normaliseError
 (
     const scalarField& y0,
     const scalarField& y,
diff --git a/src/ODE/ODESolvers/ODESolver/ODESolver.H b/src/ODE/ODESolvers/ODESolver/ODESolver.H
index c2249f87f6..3a01fa3890 100644
--- a/src/ODE/ODESolvers/ODESolver/ODESolver.H
+++ b/src/ODE/ODESolvers/ODESolver/ODESolver.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -76,8 +76,8 @@ protected:
 
     // Protected Member Functions
 
-        //- Return the normalized scalar error
-        scalar normalizeError
+        //- Return the normalised scalar error
+        scalar normaliseError
         (
             const scalarField& y0,
             const scalarField& y,
diff --git a/src/ODE/ODESolvers/RKCK45/RKCK45.C b/src/ODE/ODESolvers/RKCK45/RKCK45.C
index 5c591e3b1d..1ae2b4f462 100644
--- a/src/ODE/ODESolvers/RKCK45/RKCK45.C
+++ b/src/ODE/ODESolvers/RKCK45/RKCK45.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -171,7 +171,7 @@ Foam::scalar Foam::RKCK45::solve
            *(e1*dydx0[i] + e3*k3_[i] + e4*k4_[i] + e5*k5_[i] + e6*k6_[i]);
     }
 
-    return normalizeError(y0, y, err_);
+    return normaliseError(y0, y, err_);
 }
 
 
diff --git a/src/ODE/ODESolvers/RKDP45/RKDP45.C b/src/ODE/ODESolvers/RKDP45/RKDP45.C
index 604f24c679..6ba8bcfe54 100644
--- a/src/ODE/ODESolvers/RKDP45/RKDP45.C
+++ b/src/ODE/ODESolvers/RKDP45/RKDP45.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -180,7 +180,7 @@ Foam::scalar Foam::RKDP45::solve
              + e7*k2_[i]);
     }
 
-    return normalizeError(y0, y, err_);
+    return normaliseError(y0, y, err_);
 }
 
 
diff --git a/src/ODE/ODESolvers/RKF45/RKF45.C b/src/ODE/ODESolvers/RKF45/RKF45.C
index a6f72e3bd5..362915ea49 100644
--- a/src/ODE/ODESolvers/RKF45/RKF45.C
+++ b/src/ODE/ODESolvers/RKF45/RKF45.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -176,7 +176,7 @@ Foam::scalar Foam::RKF45::solve
            *(e1*dydx0[i] + e3*k3_[i] + e4*k4_[i] + e5*k5_[i] + e6*k6_[i]);
     }
 
-    return normalizeError(y0, y, err_);
+    return normaliseError(y0, y, err_);
 }
 
 
diff --git a/src/ODE/ODESolvers/Rosenbrock12/Rosenbrock12.C b/src/ODE/ODESolvers/Rosenbrock12/Rosenbrock12.C
index 8e309b4ce6..f44d4a9816 100644
--- a/src/ODE/ODESolvers/Rosenbrock12/Rosenbrock12.C
+++ b/src/ODE/ODESolvers/Rosenbrock12/Rosenbrock12.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -144,7 +144,7 @@ Foam::scalar Foam::Rosenbrock12::solve
         err_[i] = e1*k1_[i] + e2*k2_[i];
     }
 
-    return normalizeError(y0, y, err_);
+    return normaliseError(y0, y, err_);
 }
 
 
diff --git a/src/ODE/ODESolvers/Rosenbrock23/Rosenbrock23.C b/src/ODE/ODESolvers/Rosenbrock23/Rosenbrock23.C
index bab6b79917..848ee8ab51 100644
--- a/src/ODE/ODESolvers/Rosenbrock23/Rosenbrock23.C
+++ b/src/ODE/ODESolvers/Rosenbrock23/Rosenbrock23.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -167,7 +167,7 @@ Foam::scalar Foam::Rosenbrock23::solve
         err_[i] = e1*k1_[i] + e2*k2_[i] + e3*k3_[i];
     }
 
-    return normalizeError(y0, y, err_);
+    return normaliseError(y0, y, err_);
 }
 
 
diff --git a/src/ODE/ODESolvers/Rosenbrock34/Rosenbrock34.C b/src/ODE/ODESolvers/Rosenbrock34/Rosenbrock34.C
index 1bcdc04e5f..5d903a67ed 100644
--- a/src/ODE/ODESolvers/Rosenbrock34/Rosenbrock34.C
+++ b/src/ODE/ODESolvers/Rosenbrock34/Rosenbrock34.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -228,7 +228,7 @@ Foam::scalar Foam::Rosenbrock34::solve
         err_[i] = e1*k1_[i] + e2*k2_[i] + e4*k4_[i];
     }
 
-    return normalizeError(y0, y, err_);
+    return normaliseError(y0, y, err_);
 }
 
 
diff --git a/src/ODE/ODESolvers/Trapezoid/Trapezoid.C b/src/ODE/ODESolvers/Trapezoid/Trapezoid.C
index 33363899e7..45aa65f65e 100644
--- a/src/ODE/ODESolvers/Trapezoid/Trapezoid.C
+++ b/src/ODE/ODESolvers/Trapezoid/Trapezoid.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -91,7 +91,7 @@ Foam::scalar Foam::Trapezoid::solve
         err_[i] = 0.5*dx*(err_[i] - dydx0[i]);
     }
 
-    return normalizeError(y0, y, err_);
+    return normaliseError(y0, y, err_);
 }
 
 
diff --git a/src/ODE/ODESolvers/rodas23/rodas23.C b/src/ODE/ODESolvers/rodas23/rodas23.C
index f2c532620f..85c24a8392 100644
--- a/src/ODE/ODESolvers/rodas23/rodas23.C
+++ b/src/ODE/ODESolvers/rodas23/rodas23.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -173,7 +173,7 @@ Foam::scalar Foam::rodas23::solve
         y[i] = y0[i] + dy_[i] + err_[i];
     }
 
-    return normalizeError(y0, y, err_);
+    return normaliseError(y0, y, err_);
 }
 
 
diff --git a/src/ODE/ODESolvers/rodas34/rodas34.C b/src/ODE/ODESolvers/rodas34/rodas34.C
index 0d4eff4aea..cae6976b5b 100644
--- a/src/ODE/ODESolvers/rodas34/rodas34.C
+++ b/src/ODE/ODESolvers/rodas34/rodas34.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -238,7 +238,7 @@ Foam::scalar Foam::rodas34::solve
         y[i] = y0[i] + dy_[i] + err_[i];
     }
 
-    return normalizeError(y0, y, err_);
+    return normaliseError(y0, y, err_);
 }
 
 
diff --git a/src/OpenFOAM/containers/HashTables/HashPtrTable/HashPtrTable.H b/src/OpenFOAM/containers/HashTables/HashPtrTable/HashPtrTable.H
index 14f37fe6ed..b14d7805a1 100644
--- a/src/OpenFOAM/containers/HashTables/HashPtrTable/HashPtrTable.H
+++ b/src/OpenFOAM/containers/HashTables/HashPtrTable/HashPtrTable.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::HashPtrTable
 
 Description
-    A HashTable specialization for hashing pointers.
+    A HashTable specialisation for hashing pointers.
 
 SourceFiles
     HashPtrTable.C
diff --git a/src/OpenFOAM/containers/HashTables/HashTable/HashTable.C b/src/OpenFOAM/containers/HashTables/HashTable/HashTable.C
index 1f6ef5336e..24d91f576d 100644
--- a/src/OpenFOAM/containers/HashTables/HashTable/HashTable.C
+++ b/src/OpenFOAM/containers/HashTables/HashTable/HashTable.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -415,7 +415,7 @@ Foam::label Foam::HashTable<T, Key, Hash>::erase
     label count = 0;
 
     // Remove rhs keys from this table - terminates early if possible
-    // Could optimize depending on which hash is smaller ...
+    // Could optimise depending on which hash is smaller ...
     for (iterator iter = begin(); iter != end(); ++iter)
     {
         if (rhs.found(iter.key()) && erase(iter))
diff --git a/src/OpenFOAM/containers/HashTables/ListHashTable/ListHashTable.C b/src/OpenFOAM/containers/HashTables/ListHashTable/ListHashTable.C
index a96247ec8a..78e95204d7 100644
--- a/src/OpenFOAM/containers/HashTables/ListHashTable/ListHashTable.C
+++ b/src/OpenFOAM/containers/HashTables/ListHashTable/ListHashTable.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -363,7 +363,7 @@ Foam::label Foam::ListHashTable<T, Key, Hash>::erase
     label count = 0;
 
     // Remove rhs elements from this table
-    // NOTE: could optimize depending on which hash is smaller
+    // NOTE: could optimise depending on which hash is smaller
     for (iterator iter = this->begin(); iter != this->end(); ++iter)
     {
         if (rhs.found(iter.key()) && erase(iter))
diff --git a/src/OpenFOAM/containers/Lists/ListListOps/ListListOps.H b/src/OpenFOAM/containers/Lists/ListListOps/ListListOps.H
index 7ad3a37adc..07b3167c93 100644
--- a/src/OpenFOAM/containers/Lists/ListListOps/ListListOps.H
+++ b/src/OpenFOAM/containers/Lists/ListListOps/ListListOps.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -34,7 +34,7 @@ Description
         similar and also adds offset.
 
     The access of data is through an AccessOp so that data can be 'gather'ed
-    in one go, minimizing communication, and then picked apart and recombined.
+    in one go, minimising communication, and then picked apart and recombined.
 
     Example:
     \code
diff --git a/src/OpenFOAM/containers/Lists/PackedList/PackedList.H b/src/OpenFOAM/containers/Lists/PackedList/PackedList.H
index ba53e9ba4b..cdb4bc911b 100644
--- a/src/OpenFOAM/containers/Lists/PackedList/PackedList.H
+++ b/src/OpenFOAM/containers/Lists/PackedList/PackedList.H
@@ -82,7 +82,7 @@ Note
     \verbatim
         { (index1 value1) (index2 value2) (index3 value3) }
     \endverbatim
-    The bool specialization just uses the indices corresponding to
+    The bool specialisation just uses the indices corresponding to
     non-zero entries instead of a index/value pair:
     \verbatim
         { index1 index2 index3 }
@@ -163,11 +163,11 @@ protected:
         //- Calculate the list length when packed
         inline static label packedLength(const label);
 
-        //- Read a list entry (allows for specialization)
+        //- Read a list entry (allows for specialisation)
         inline static unsigned int readValue(Istream&);
 
         //- Read an index/value pair and set accordingly.
-        //  For bool specialization, read a single index value
+        //  For bool specialisation, read a single index value
         inline void setPair(Istream&);
 
 
@@ -364,7 +364,7 @@ public:
             //  \verbatim
             //      { (index1 value1) (index2 value2) (index3 value3) }
             // \endverbatim
-            // The bool specialization just uses the indices corresponding to
+            // The bool specialisation just uses the indices corresponding to
             // non-zero entries instead of a index/value pair:
             // \verbatim
             //     { index1 index2 index3 }
@@ -461,7 +461,7 @@ public:
                 inline label key() const;
 
                 //- Write index/value for a non-zero entry
-                //  The bool specialization writes the index only
+                //  The bool specialisation writes the index only
                 inline bool writeIfSet(Ostream&) const;
 
             // Member Operators
diff --git a/src/OpenFOAM/containers/Lists/PackedList/PackedListI.H b/src/OpenFOAM/containers/Lists/PackedList/PackedListI.H
index f14f04b65e..e714cf70fa 100644
--- a/src/OpenFOAM/containers/Lists/PackedList/PackedListI.H
+++ b/src/OpenFOAM/containers/Lists/PackedList/PackedListI.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -53,7 +53,7 @@ inline unsigned int Foam::PackedList<nBits>::maskLower(unsigned offset)
 {
     // Return (1u << (nBits * offset)) - 1;
     // The next one works more reliably with overflows
-    // eg, when compiled without optimization
+    // eg, when compiled without optimisation
     return (~0u >> ( sizeof(StorageType)*CHAR_BIT - nBits * offset));
 }
 
@@ -67,21 +67,21 @@ inline Foam::label Foam::PackedList<nBits>::packedLength(const label nElem)
 
 namespace Foam
 {
-    // Template specialization for bool entries
+    // Template specialisation for bool entries
     template<>
     inline unsigned int Foam::PackedList<1>::readValue(Istream& is)
     {
         return readBool(is);
     }
 
-    // Template specialization for bool entries
+    // Template specialisation for bool entries
     template<>
     inline void Foam::PackedList<1>::setPair(Istream& is)
     {
         set(readLabel(is), true);
     }
 
-    // Template specialization for bool entries
+    // Template specialisation for bool entries
     template<>
     inline bool Foam::PackedList<1>::iteratorBase::writeIfSet(Ostream& os) const
     {
diff --git a/src/OpenFOAM/containers/Lists/UList/UList.H b/src/OpenFOAM/containers/Lists/UList/UList.H
index 6fa4be070b..6f65b58bf2 100644
--- a/src/OpenFOAM/containers/Lists/UList/UList.H
+++ b/src/OpenFOAM/containers/Lists/UList/UList.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -229,7 +229,7 @@ public:
         inline T& operator[](const label);
 
         //- Return element of constant UList
-        //  Note that the bool specialization adds lazy evaluation so reading
+        //  Note that the bool specialisation adds lazy evaluation so reading
         //  an out-of-range element returns false without any ill-effects
         inline const T& operator[](const label) const;
 
diff --git a/src/OpenFOAM/containers/Lists/UList/UListI.H b/src/OpenFOAM/containers/Lists/UList/UListI.H
index 3bb3d25687..dc7e87ff38 100644
--- a/src/OpenFOAM/containers/Lists/UList/UListI.H
+++ b/src/OpenFOAM/containers/Lists/UList/UListI.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -175,7 +175,7 @@ inline T& Foam::UList<T>::operator[](const label i)
 
 namespace Foam
 {
-    // Template specialization for bool
+    // Template specialisation for bool
     template<>
     inline const bool& Foam::UList<bool>::operator[](const label i) const
     {
diff --git a/src/OpenFOAM/db/dictionary/dictionary.C b/src/OpenFOAM/db/dictionary/dictionary.C
index 86214dab3e..3fd05fabe2 100644
--- a/src/OpenFOAM/db/dictionary/dictionary.C
+++ b/src/OpenFOAM/db/dictionary/dictionary.C
@@ -622,7 +622,7 @@ Foam::SHA1Digest Foam::dictionary::digest() const
 
 Foam::tokenList Foam::dictionary::tokens() const
 {
-    // Serialize dictionary into a string
+    // Serialise dictionary into a string
     OStringStream os;
     write(os, false);
     IStringStream is(os.str());
diff --git a/src/OpenFOAM/db/functionObjects/regionFunctionObject/regionFunctionObject.H b/src/OpenFOAM/db/functionObjects/regionFunctionObject/regionFunctionObject.H
index c2139a06cb..7cc73bcf02 100644
--- a/src/OpenFOAM/db/functionObjects/regionFunctionObject/regionFunctionObject.H
+++ b/src/OpenFOAM/db/functionObjects/regionFunctionObject/regionFunctionObject.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::functionObjects::regionFunctionObject
 
 Description
-    Specialization of Foam::functionObject for a region and providing a
+    Specialisation of Foam::functionObject for a region and providing a
     reference to the region Foam::objectRegistry.
 
 See also
diff --git a/src/OpenFOAM/fields/GeometricFields/SlicedGeometricField/SlicedGeometricField.H b/src/OpenFOAM/fields/GeometricFields/SlicedGeometricField/SlicedGeometricField.H
index 916cebfd9e..566a4a8de7 100644
--- a/src/OpenFOAM/fields/GeometricFields/SlicedGeometricField/SlicedGeometricField.H
+++ b/src/OpenFOAM/fields/GeometricFields/SlicedGeometricField/SlicedGeometricField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::SlicedGeometricField
 
 Description
-    Specialization of GeometricField which holds slices of given complete
+    Specialisation of GeometricField which holds slices of given complete
     fields in a form that they act as a GeometricField.
 
     The destructor is wrapped to avoid deallocation of the storage of the
diff --git a/src/OpenFOAM/global/argList/argListI.H b/src/OpenFOAM/global/argList/argListI.H
index 7cc3a7a291..66ed40df08 100644
--- a/src/OpenFOAM/global/argList/argListI.H
+++ b/src/OpenFOAM/global/argList/argListI.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -123,11 +123,11 @@ inline Foam::IStringStream Foam::argList::optionLookup(const word& opt) const
 }
 
 
-// * * * * * * * * * * * * Template Specializations  * * * * * * * * * * * * //
+// * * * * * * * * * * * * Template Specialisations  * * * * * * * * * * * * //
 
 namespace Foam
 {
-    // Template specialization for string
+    // Template specialisation for string
     template<>
     inline Foam::string
     Foam::argList::argRead<Foam::string>(const label index) const
@@ -135,7 +135,7 @@ namespace Foam
         return args_[index];
     }
 
-    // Template specialization for word
+    // Template specialisation for word
     template<>
     inline Foam::word
     Foam::argList::argRead<Foam::word>(const label index) const
@@ -143,7 +143,7 @@ namespace Foam
         return args_[index];
     }
 
-    // Template specialization for fileName
+    // Template specialisation for fileName
     template<>
     inline Foam::fileName
     Foam::argList::argRead<Foam::fileName>(const label index) const
@@ -151,7 +151,7 @@ namespace Foam
         return args_[index];
     }
 
-    // Template specialization for string
+    // Template specialisation for string
     template<>
     inline Foam::string
     Foam::argList::optionRead<Foam::string>(const word& opt) const
@@ -159,7 +159,7 @@ namespace Foam
         return options_[opt];
     }
 
-    // Template specialization for word
+    // Template specialisation for word
     template<>
     inline Foam::word
     Foam::argList::optionRead<Foam::word>(const word& opt) const
@@ -167,7 +167,7 @@ namespace Foam
         return options_[opt];
     }
 
-    // Template specialization for fileName
+    // Template specialisation for fileName
     template<>
     inline Foam::fileName
     Foam::argList::optionRead<Foam::fileName>(const word& opt) const
diff --git a/src/OpenFOAM/matrices/LduMatrix/LduMatrix/solverPerformance.H b/src/OpenFOAM/matrices/LduMatrix/LduMatrix/solverPerformance.H
index 60bacdc5e7..03fbb9e57a 100644
--- a/src/OpenFOAM/matrices/LduMatrix/LduMatrix/solverPerformance.H
+++ b/src/OpenFOAM/matrices/LduMatrix/LduMatrix/solverPerformance.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2012-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -43,7 +43,7 @@ namespace Foam
 {
     typedef SolverPerformance<scalar> solverPerformance;
 
-    // Specialization of the max function for scalar object
+    // Specialisation of the max function for scalar object
     template<>
     SolverPerformance<scalar> SolverPerformance<scalar>::max();
 }
diff --git a/src/OpenFOAM/matrices/lduMatrix/solvers/PBiCGStab/PBiCGStab.H b/src/OpenFOAM/matrices/lduMatrix/solvers/PBiCGStab/PBiCGStab.H
index e720e46902..165e0b8dcd 100644
--- a/src/OpenFOAM/matrices/lduMatrix/solvers/PBiCGStab/PBiCGStab.H
+++ b/src/OpenFOAM/matrices/lduMatrix/solvers/PBiCGStab/PBiCGStab.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::PBiCGStab
 
 Description
-    Preconditioned bi-conjugate gradient stabilized solver for asymmetric
+    Preconditioned bi-conjugate gradient stabilised solver for asymmetric
     lduMatrices using a run-time selectable preconditioner.
 
     References:
diff --git a/src/OpenFOAM/meshes/bandCompression/bandCompression.C b/src/OpenFOAM/meshes/bandCompression/bandCompression.C
index e1b9918ccb..0b77123a2a 100644
--- a/src/OpenFOAM/meshes/bandCompression/bandCompression.C
+++ b/src/OpenFOAM/meshes/bandCompression/bandCompression.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -51,7 +51,7 @@ Foam::labelList Foam::bandCompression(const labelListList& cellCellAddressing)
     label cellInOrder = 0;
 
 
-    // Work arrays. Kept outside of loop to minimize allocations.
+    // Work arrays. Kept outside of loop to minimise allocations.
     // - neighbour cells
     DynamicList<label> nbrs;
     // - corresponding weights
@@ -176,7 +176,7 @@ Foam::labelList Foam::bandCompression
     label cellInOrder = 0;
 
 
-    // Work arrays. Kept outside of loop to minimize allocations.
+    // Work arrays. Kept outside of loop to minimise allocations.
     // - neighbour cells
     DynamicList<label> nbrs;
     // - corresponding weights
diff --git a/src/OpenFOAM/meshes/meshShapes/cellMatcher/degenerateMatcher.C b/src/OpenFOAM/meshes/meshShapes/cellMatcher/degenerateMatcher.C
index d67002ee11..33483ada19 100644
--- a/src/OpenFOAM/meshes/meshShapes/cellMatcher/degenerateMatcher.C
+++ b/src/OpenFOAM/meshes/meshShapes/cellMatcher/degenerateMatcher.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -44,7 +44,7 @@ Foam::cellShape Foam::degenerateMatcher::match
     const labelList& cellFaces
 )
 {
-    // Recognize in order of assumed occurrence.
+    // Recognise in order of assumed occurrence.
 
     if (hex.matchShape(false, faces, owner, celli, cellFaces))
     {
diff --git a/src/OpenFOAM/meshes/meshShapes/cellMatcher/degenerateMatcher.H b/src/OpenFOAM/meshes/meshShapes/cellMatcher/degenerateMatcher.H
index cfb8678e31..ed5d3e0c39 100644
--- a/src/OpenFOAM/meshes/meshShapes/cellMatcher/degenerateMatcher.H
+++ b/src/OpenFOAM/meshes/meshShapes/cellMatcher/degenerateMatcher.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -70,7 +70,7 @@ class degenerateMatcher
 
     // Static functions
 
-        //- Recognize basic shape
+        //- Recognise basic shape
         static cellShape match
         (
             const faceList& faces,
@@ -83,14 +83,14 @@ public:
 
     // Static Data Members
 
-        //- Recognize shape given faces of a cell
+        //- Recognise shape given faces of a cell
         static cellShape match(const faceList& faces);
 
-        //- Recognize given uncollapsed shape (usually hex) with duplicate
+        //- Recognise given uncollapsed shape (usually hex) with duplicate
         //  vertices. cellShape just used to extract faces.
         static cellShape match(const cellShape& shape);
 
-        //- Recognize shape given mesh and celli
+        //- Recognise shape given mesh and celli
         static cellShape match(const primitiveMesh& mesh, const label celli);
 };
 
diff --git a/src/OpenFOAM/meshes/meshShapes/edge/edge.H b/src/OpenFOAM/meshes/meshShapes/edge/edge.H
index 1adcf34d66..5a535f9904 100644
--- a/src/OpenFOAM/meshes/meshShapes/edge/edge.H
+++ b/src/OpenFOAM/meshes/meshShapes/edge/edge.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -139,7 +139,7 @@ public:
 };
 
 
-//- Hash specialization for hashing edges - a commutative hash value.
+//- Hash specialisation for hashing edges - a commutative hash value.
 //  Hash incrementally.
 template<>
 inline unsigned Hash<edge>::operator()(const edge& e, unsigned seed) const
@@ -161,7 +161,7 @@ inline unsigned Hash<edge>::operator()(const edge& e, unsigned seed) const
 }
 
 
-//- Hash specialization for hashing edges - a commutative hash value.
+//- Hash specialisation for hashing edges - a commutative hash value.
 //  Hash incrementally.
 template<>
 inline unsigned Hash<edge>::operator()(const edge& e) const
diff --git a/src/OpenFOAM/meshes/meshShapes/face/face.C b/src/OpenFOAM/meshes/meshShapes/face/face.C
index 11a323b465..314421a7e3 100644
--- a/src/OpenFOAM/meshes/meshShapes/face/face.C
+++ b/src/OpenFOAM/meshes/meshShapes/face/face.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -544,7 +544,7 @@ Foam::scalar Foam::face::sweptVol
     const pointField& newPoints
 ) const
 {
-    // This Optimization causes a small discrepancy between the swept-volume of
+    // This Optimisation causes a small discrepancy between the swept-volume of
     // opposite faces of complex cells with triangular faces opposing polygons.
     // It could be used without problem for tetrahedral cells
     // if (size() == 3)
diff --git a/src/OpenFOAM/meshes/meshShapes/face/face.H b/src/OpenFOAM/meshes/meshShapes/face/face.H
index 99b876893b..c3c7a4155f 100644
--- a/src/OpenFOAM/meshes/meshShapes/face/face.H
+++ b/src/OpenFOAM/meshes/meshShapes/face/face.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -242,7 +242,7 @@ public:
         ) const;
 
         //- Return potential intersection with face with a ray starting
-        //  at p, direction n (does not need to be normalized)
+        //  at p, direction n (does not need to be normalised)
         //  Does face-centre decomposition and returns triangle intersection
         //  point closest to p. Face-centre is calculated from point average.
         //  For a hit, the distance is signed.  Positive number
@@ -340,7 +340,7 @@ public:
 
             //- Split into triangles using existing points.
             //  Result in triFaces[triI..triI+nTri].
-            //  Splits intelligently to maximize triangle quality.
+            //  Splits intelligently to maximise triangle quality.
             //  Returns number of faces created.
             label triangles
             (
@@ -409,7 +409,7 @@ public:
 };
 
 
-//- Hash specialization to offset faces in ListListOps::combineOffset
+//- Hash specialisation to offset faces in ListListOps::combineOffset
 template<>
 class offsetOp<face>
 {
diff --git a/src/OpenFOAM/meshes/meshShapes/face/faceIntersection.C b/src/OpenFOAM/meshes/meshShapes/face/faceIntersection.C
index e0932e428f..52775d39e7 100644
--- a/src/OpenFOAM/meshes/meshShapes/face/faceIntersection.C
+++ b/src/OpenFOAM/meshes/meshShapes/face/faceIntersection.C
@@ -40,7 +40,7 @@ Foam::pointHit Foam::face::ray
 ) const
 {
     // Return potential intersection with face with a ray starting
-    // at p, direction n (does not need to be normalized)
+    // at p, direction n (does not need to be normalised)
     // Does face-center decomposition and returns triangle intersection
     // point closest to p.
 
diff --git a/src/OpenFOAM/meshes/meshShapes/triFace/triFace.H b/src/OpenFOAM/meshes/meshShapes/triFace/triFace.H
index c6a01bba99..3f5c30facf 100644
--- a/src/OpenFOAM/meshes/meshShapes/triFace/triFace.H
+++ b/src/OpenFOAM/meshes/meshShapes/triFace/triFace.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -235,7 +235,7 @@ public:
 };
 
 
-//- Hash specialization for hashing triFace - a commutative hash value.
+//- Hash specialisation for hashing triFace - a commutative hash value.
 //  Hash incrementally.
 template<>
 inline unsigned Hash<triFace>::operator()(const triFace& t, unsigned seed) const
@@ -251,7 +251,7 @@ inline unsigned Hash<triFace>::operator()(const triFace& t, unsigned seed) const
 }
 
 
-//- Hash specialization for hashing triFace - a commutative hash value.
+//- Hash specialisation for hashing triFace - a commutative hash value.
 template<>
 inline unsigned Hash<triFace>::operator()(const triFace& t) const
 {
@@ -263,7 +263,7 @@ template<>
 inline bool contiguous<triFace>()  {return true;}
 
 
-//- Hash specialization to offset faces in ListListOps::combineOffset
+//- Hash specialisation to offset faces in ListListOps::combineOffset
 template<>
 class offsetOp<triFace>
 {
diff --git a/src/OpenFOAM/meshes/polyMesh/polyMesh.C b/src/OpenFOAM/meshes/polyMesh/polyMesh.C
index f6165ddc35..c638081595 100644
--- a/src/OpenFOAM/meshes/polyMesh/polyMesh.C
+++ b/src/OpenFOAM/meshes/polyMesh/polyMesh.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -683,7 +683,7 @@ void Foam::polyMesh::resetPrimitives
     clearAddressing(true);
 
     // Take over new primitive data.
-    // Optimized to avoid overwriting data at all
+    // Optimised to avoid overwriting data at all
     if (notNull(points))
     {
         points_ = move(points);
@@ -1630,7 +1630,7 @@ Foam::label Foam::polyMesh::findCell
 
     if (decompMode == CELL_TETS)
     {
-        // Advanced search method utilizing an octree
+        // Advanced search method utilising an octree
         // and tet-decomposition of the cells
 
         label celli;
diff --git a/src/OpenFOAM/meshes/polyMesh/syncTools/syncTools.H b/src/OpenFOAM/meshes/polyMesh/syncTools/syncTools.H
index c96a212d5f..0e30b2482c 100644
--- a/src/OpenFOAM/meshes/polyMesh/syncTools/syncTools.H
+++ b/src/OpenFOAM/meshes/polyMesh/syncTools/syncTools.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::syncTools
 
 Description
-    Various tools to aid synchronizing lists across coupled patches. WIP.
+    Various tools to aid synchronising lists across coupled patches. WIP.
 
     Require
     - combineOperator (e.g. sumEqOp - not sumOp!) that is defined for the
@@ -91,7 +91,7 @@ public:
         // Basic routines with user-supplied transformation. Preferably
         // use specialisations below.
 
-            //- Synchronize values on selected points.
+            //- Synchronise values on selected points.
             template<class T, class CombineOp, class TransformOp>
             static void syncPointMap
             (
@@ -101,7 +101,7 @@ public:
                 const TransformOp& top
             );
 
-            //- Synchronize values on selected edges.
+            //- Synchronise values on selected edges.
             template<class T, class CombineOp, class TransformOp>
             static void syncEdgeMap
             (
@@ -111,7 +111,7 @@ public:
                 const TransformOp& top
             );
 
-            //- Synchronize values on all mesh points.
+            //- Synchronise values on all mesh points.
             template<class T, class CombineOp, class TransformOp>
             static void syncPointList
             (
@@ -122,7 +122,7 @@ public:
                 const TransformOp& top
             );
 
-            //- Synchronize values on selected mesh points.
+            //- Synchronise values on selected mesh points.
             template<class T, class CombineOp, class TransformOp>
             static void syncPointList
             (
@@ -134,7 +134,7 @@ public:
                 const TransformOp& top
             );
 
-            //- Synchronize values on all mesh edges.
+            //- Synchronise values on all mesh edges.
             template<class T, class CombineOp, class TransformOp>
             static void syncEdgeList
             (
@@ -145,7 +145,7 @@ public:
                 const TransformOp& top
             );
 
-            //- Synchronize values on selected mesh edges.
+            //- Synchronise values on selected mesh edges.
             template<class T, class CombineOp, class TransformOp>
             static void syncEdgeList
             (
@@ -157,7 +157,7 @@ public:
                 const TransformOp& top
             );
 
-            //- Synchronize values on boundary faces only.
+            //- Synchronise values on boundary faces only.
             template<class T, class CombineOp, class TransformOp>
             static void syncBoundaryFaceList
             (
@@ -171,7 +171,7 @@ public:
 
         // Synchronise point-wise data
 
-            //- Synchronize values on all mesh points.
+            //- Synchronise values on all mesh points.
             template<class T, class CombineOp>
             static void syncPointList
             (
@@ -191,7 +191,7 @@ public:
                 );
             }
 
-            //- Synchronize locations on all mesh points.
+            //- Synchronise locations on all mesh points.
             template<class CombineOp>
             static void syncPointPositions
             (
@@ -211,7 +211,7 @@ public:
                 );
             }
 
-            //- Synchronize values on selected mesh points.
+            //- Synchronise values on selected mesh points.
             template<class T, class CombineOp>
             static void syncPointList
             (
@@ -233,7 +233,7 @@ public:
                 );
             }
 
-            //- Synchronize locations on selected mesh points.
+            //- Synchronise locations on selected mesh points.
             template<class CombineOp>
             static void syncPointPositions
             (
@@ -258,7 +258,7 @@ public:
 
         // Synchronise edge-wise data
 
-            //- Synchronize values on all mesh edges.
+            //- Synchronise values on all mesh edges.
             template<class T, class CombineOp>
             static void syncEdgeList
             (
@@ -278,7 +278,7 @@ public:
                 );
             }
 
-            //- Synchronize locations on all mesh edges.
+            //- Synchronise locations on all mesh edges.
             template<class CombineOp>
             static void syncEdgePositions
             (
@@ -298,7 +298,7 @@ public:
                 );
             }
 
-            //- Synchronize values on selected mesh edges.
+            //- Synchronise values on selected mesh edges.
             template<class T, class CombineOp>
             static void syncEdgeList
             (
@@ -320,7 +320,7 @@ public:
                 );
             }
 
-            //- Synchronize locations on selected mesh edges.
+            //- Synchronise locations on selected mesh edges.
             template<class CombineOp>
             static void syncEdgePositions
             (
@@ -346,7 +346,7 @@ public:
 
         // Synchronise face-wise data
 
-            //- Synchronize values on boundary faces only.
+            //- Synchronise values on boundary faces only.
             template<class T, class CombineOp>
             static void syncBoundaryFaceList
             (
@@ -358,7 +358,7 @@ public:
                 syncBoundaryFaceList(mesh, l, cop, mapDistribute::transform());
             }
 
-            //- Synchronize locations on boundary faces only.
+            //- Synchronise locations on boundary faces only.
             template<class CombineOp>
             static void syncBoundaryFacePositions
             (
@@ -376,7 +376,7 @@ public:
                 );
             }
 
-            //- Synchronize values on all mesh faces.
+            //- Synchronise values on all mesh faces.
             template<class T, class CombineOp>
             static void syncFaceList
             (
@@ -401,7 +401,7 @@ public:
                 );
             }
 
-            //- Synchronize locations on all mesh faces.
+            //- Synchronise locations on all mesh faces.
             template<class CombineOp>
             static void syncFacePositions
             (
@@ -500,7 +500,7 @@ public:
 
         // Sparse versions
 
-            //- Synchronize values on selected points.
+            //- Synchronise values on selected points.
             template<class T, class CombineOp>
             static void syncPointMap
             (
@@ -512,7 +512,7 @@ public:
                 syncPointMap(mesh, l, cop, mapDistribute::transform());
             }
 
-            //- Synchronize locations on selected points.
+            //- Synchronise locations on selected points.
             template<class CombineOp>
             static void syncPointPositions
             (
@@ -524,7 +524,7 @@ public:
                 syncPointMap(mesh, l, cop, mapDistribute::transformPosition());
             }
 
-            //- Synchronize values on selected edges. Edges are represented
+            //- Synchronise values on selected edges. Edges are represented
             //  by the two vertices that make it up so global edges never get
             //  constructed.
             template<class T, class CombineOp>
@@ -538,7 +538,7 @@ public:
                 syncEdgeMap(mesh, l, cop, mapDistribute::transform());
             }
 
-            //- Synchronize locations on selected edges.
+            //- Synchronise locations on selected edges.
             template<class CombineOp>
             static void syncEdgePositions
             (
diff --git a/src/OpenFOAM/meshes/polyMesh/syncTools/syncToolsTemplates.C b/src/OpenFOAM/meshes/polyMesh/syncTools/syncToolsTemplates.C
index 37e211bd69..fd2d326387 100644
--- a/src/OpenFOAM/meshes/polyMesh/syncTools/syncToolsTemplates.C
+++ b/src/OpenFOAM/meshes/polyMesh/syncTools/syncToolsTemplates.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -89,7 +89,7 @@ void Foam::syncTools::syncPointMap
 {
     const polyBoundaryMesh& patches = mesh.boundaryMesh();
 
-    // Synchronize multiple shared points.
+    // Synchronise multiple shared points.
     const globalMeshData& pd = mesh.globalData();
 
     // Values on shared points. Keyed on global shared index.
@@ -288,7 +288,7 @@ void Foam::syncTools::syncPointMap
         }
     }
 
-    // Synchronize multiple shared points.
+    // Synchronise multiple shared points.
     if (pd.nGlobalPoints() > 0)
     {
         // meshPoint per local index
@@ -601,7 +601,7 @@ void Foam::syncTools::syncEdgeMap
         }
     }
 
-    // Synchronize multiple shared points.
+    // Synchronise multiple shared points.
     // Problem is that we don't want to construct shared edges so basically
     // we do here like globalMeshData but then using sparse edge representation
     // (EdgeMap instead of mesh.edges())
@@ -790,7 +790,7 @@ void Foam::syncTools::syncEdgeMap
 //
 //    const polyBoundaryMesh& patches = mesh.boundaryMesh();
 //
-//    // Synchronize multiple shared points.
+//    // Synchronise multiple shared points.
 //    const globalMeshData& pd = mesh.globalData();
 //
 //    // Values on shared points.
@@ -922,7 +922,7 @@ void Foam::syncTools::syncEdgeMap
 //        }
 //    }
 //
-//    // Synchronize multiple shared points.
+//    // Synchronise multiple shared points.
 //    const globalMeshData& pd = mesh.globalData();
 //
 //    if (pd.nGlobalPoints() > 0)
diff --git a/src/OpenFOAM/meshes/primitiveMesh/PatchTools/PatchToolsSortEdges.C b/src/OpenFOAM/meshes/primitiveMesh/PatchTools/PatchToolsSortEdges.C
index 3fd7bbed4c..45c558792a 100644
--- a/src/OpenFOAM/meshes/primitiveMesh/PatchTools/PatchToolsSortEdges.C
+++ b/src/OpenFOAM/meshes/primitiveMesh/PatchTools/PatchToolsSortEdges.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -52,7 +52,7 @@ Foam::labelListList Foam::PatchTools::sortedEdgeFaces
 
         if (faceNbs.size() > 2)
         {
-            // Get point on edge and normalized direction of edge (= e2 base
+            // Get point on edge and normalised direction of edge (= e2 base
             // of our coordinate system)
             const edge& e = edges[edgeI];
 
diff --git a/src/OpenFOAM/meshes/primitiveMesh/primitiveMeshCheck/primitiveMeshTools.C b/src/OpenFOAM/meshes/primitiveMesh/primitiveMeshCheck/primitiveMeshTools.C
index a8e3a14488..f8d7f7ac94 100644
--- a/src/OpenFOAM/meshes/primitiveMesh/primitiveMeshCheck/primitiveMeshTools.C
+++ b/src/OpenFOAM/meshes/primitiveMesh/primitiveMeshCheck/primitiveMeshTools.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2012-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -364,7 +364,7 @@ Foam::tmp<Foam::scalarField> Foam::primitiveMeshTools::faceConcavity
             // Get vertex after fp
             label fp1 = f.fcIndex(fp0);
 
-            // Normalized vector between two consecutive points
+            // Normalised vector between two consecutive points
             vector e10(p[f[fp1]] - p[f[fp0]]);
             scalar magE10 = mag(e10);
             e10 /= magE10 + rootVSmall;
@@ -488,7 +488,7 @@ Foam::tmp<Foam::scalarField> Foam::primitiveMeshTools::cellDeterminant
         {
             const labelList& curFaces = c[celli];
 
-            // Calculate local normalization factor
+            // Calculate local normalisation factor
             scalar avgArea = 0;
 
             label nInternalFaces = 0;
diff --git a/src/OpenFOAM/meshes/treeBoundBox/treeBoundBox.C b/src/OpenFOAM/meshes/treeBoundBox/treeBoundBox.C
index 9260b180b3..59d08a4ce1 100644
--- a/src/OpenFOAM/meshes/treeBoundBox/treeBoundBox.C
+++ b/src/OpenFOAM/meshes/treeBoundBox/treeBoundBox.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -596,7 +596,7 @@ Foam::label Foam::treeBoundBox::distanceCmp
      +  sqr(farOther.z() - pt.z());
 
     //
-    // Categorize
+    // Categorise
     //
     if (maxDistThis < minDistOther)
     {
diff --git a/src/OpenFOAM/primitives/Scalar/scalar/incGamma.C b/src/OpenFOAM/primitives/Scalar/scalar/incGamma.C
index e315100c9b..2c6cf40b4f 100644
--- a/src/OpenFOAM/primitives/Scalar/scalar/incGamma.C
+++ b/src/OpenFOAM/primitives/Scalar/scalar/incGamma.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2019-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -26,7 +26,7 @@ Global
 
 Description
     Calculates the upper and lower incomplete gamma functions as well as their
-    normalized versions.
+    normalised versions.
 
     The algorithm is described in detail in DiDonato et al. (1986).
 
diff --git a/src/OpenFOAM/primitives/Scalar/scalar/invIncGamma.C b/src/OpenFOAM/primitives/Scalar/scalar/invIncGamma.C
index 261714df5d..d57764a8ca 100644
--- a/src/OpenFOAM/primitives/Scalar/scalar/invIncGamma.C
+++ b/src/OpenFOAM/primitives/Scalar/scalar/invIncGamma.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -26,7 +26,7 @@ Global
 
 Description
     Function to calculate the inverse of the
-    normalized incomplete gamma function.
+    normalised incomplete gamma function.
 
     The algorithm is described in detain in reference:
     \verbatim
@@ -105,7 +105,7 @@ static scalar Sn(const scalar a, const scalar x)
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-//- Inverse normalized incomplete gamma function
+//- Inverse normalised incomplete gamma function
 Foam::scalar Foam::invIncGamma(const scalar a, const scalar P)
 {
     const scalar Q = 1 - P;
diff --git a/src/OpenFOAM/primitives/Scalar/scalar/scalar.H b/src/OpenFOAM/primitives/Scalar/scalar/scalar.H
index 9dc398e54b..9ff24a10d0 100644
--- a/src/OpenFOAM/primitives/Scalar/scalar/scalar.H
+++ b/src/OpenFOAM/primitives/Scalar/scalar/scalar.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -126,13 +126,13 @@ namespace Foam
 {
     scalar readScalar(Istream& is);
 
-    //- Inverse normalized incomplete gamma function
+    //- Inverse normalised incomplete gamma function
     scalar invIncGamma(const scalar a, const scalar P);
 
-    //- Normalized upper incomplete gamma function
+    //- Normalised upper incomplete gamma function
     scalar incGammaRatio_Q(const scalar a, const scalar x);
 
-    //- Normalized lower incomplete gamma function
+    //- Normalised lower incomplete gamma function
     scalar incGammaRatio_P(const scalar a, const scalar x);
 
     //- Upper incomplete gamma function
diff --git a/src/OpenFOAM/primitives/Vector/VectorI.H b/src/OpenFOAM/primitives/Vector/VectorI.H
index 1d166938b9..8bce8e9fbe 100644
--- a/src/OpenFOAM/primitives/Vector/VectorI.H
+++ b/src/OpenFOAM/primitives/Vector/VectorI.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -130,7 +130,7 @@ namespace Foam
 
 //- Dummy innerProduct for scalar to allow the construction of vtables for
 //  virtual member functions involving the inner-products of fields
-//  for which a "NotImplemented" specialization for scalar is provided.
+//  for which a "NotImplemented" specialisation for scalar is provided.
 template<class Cmpt>
 class innerProduct<Vector<Cmpt>, scalar>
 {
diff --git a/src/OpenFOAM/primitives/VectorSpace/VectorSpace.H b/src/OpenFOAM/primitives/VectorSpace/VectorSpace.H
index 2b25c808a9..5644781c7d 100644
--- a/src/OpenFOAM/primitives/VectorSpace/VectorSpace.H
+++ b/src/OpenFOAM/primitives/VectorSpace/VectorSpace.H
@@ -102,7 +102,7 @@ public:
 
         // VectorSpace currently defaults to a column-vector
         // This will be removed when column-vector is introduced
-        // as a specialization
+        // as a specialisation
         static const direction mRows = Ncmpts;
         static const direction nCols = 1;
 
diff --git a/src/OpenFOAM/primitives/hashes/Hash/Hash.H b/src/OpenFOAM/primitives/hashes/Hash/Hash.H
index d7f675620f..e6bc0c9160 100644
--- a/src/OpenFOAM/primitives/hashes/Hash/Hash.H
+++ b/src/OpenFOAM/primitives/hashes/Hash/Hash.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -26,7 +26,7 @@ Class
 
 Description
     Hash function class for primitives.  All non-primitives used to hash
-    entries on hash tables likely need a specialized version of this class.
+    entries on hash tables likely need a specialised version of this class.
 
 \*---------------------------------------------------------------------------*/
 
@@ -72,7 +72,7 @@ public:
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-//- Hash specialization for hashing labels
+//- Hash specialisation for hashing labels
 template<>
 class Hash<Foam::label>
 {
@@ -99,7 +99,7 @@ public:
 };
 
 
-//- Hash specialization for hashing strings
+//- Hash specialisation for hashing strings
 template<>
 class Hash<Foam::string>
 {
@@ -119,7 +119,7 @@ public:
 };
 
 
-//- Hash specialization for hashing words
+//- Hash specialisation for hashing words
 template<>
 class Hash<Foam::word>
 {
@@ -139,7 +139,7 @@ public:
 };
 
 
-//- Hash specialization for hashing fileNames
+//- Hash specialisation for hashing fileNames
 template<>
 class Hash<Foam::fileName>
 {
@@ -159,7 +159,7 @@ public:
 };
 
 
-//- Hash specialization for hashing wordRes
+//- Hash specialisation for hashing wordRes
 template<>
 class Hash<Foam::wordRe>
 {
@@ -179,7 +179,7 @@ public:
 };
 
 
-//- Hash specialization for hashing keyTypes
+//- Hash specialisation for hashing keyTypes
 template<>
 class Hash<Foam::keyType>
 {
@@ -200,7 +200,7 @@ public:
 
 
 
-//- Hash specialization for hashing pointer addresses.
+//- Hash specialisation for hashing pointer addresses.
 //  Treat a pointer like a long.
 //  This should work for both 32-bit and 64-bit pointers.
 template<>
diff --git a/src/OpenFOAM/primitives/hashes/Hasher/Hasher.C b/src/OpenFOAM/primitives/hashes/Hasher/Hasher.C
index 58b636fb00..65193a0b16 100644
--- a/src/OpenFOAM/primitives/hashes/Hasher/Hasher.C
+++ b/src/OpenFOAM/primitives/hashes/Hasher/Hasher.C
@@ -187,7 +187,7 @@ Description
 // acceptable.  Do NOT use for cryptographic purposes.
 // ----------------------------------------------------------------------------
 
-// Specialized little-endian code
+// Specialised little-endian code
 #if !defined (__BYTE_ORDER) || (__BYTE_ORDER == __LITTLE_ENDIAN)
 static unsigned jenkins_hashlittle
 (
@@ -365,7 +365,7 @@ static unsigned jenkins_hashlittle
 // from hashlittle() on all machines.  hashbig() takes advantage of
 // big-endian byte ordering.
 // ----------------------------------------------------------------------------
-// specialized big-endian code
+// specialised big-endian code
 #if !defined (__BYTE_ORDER) || (__BYTE_ORDER == __BIG_ENDIAN)
 static unsigned jenkins_hashbig
 (
diff --git a/src/OpenFOAM/primitives/hashes/Hasher/Hasher.H b/src/OpenFOAM/primitives/hashes/Hasher/Hasher.H
index c5975dd94a..d71fc2ea02 100644
--- a/src/OpenFOAM/primitives/hashes/Hasher/Hasher.H
+++ b/src/OpenFOAM/primitives/hashes/Hasher/Hasher.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -34,7 +34,7 @@ Description
 
 See also
     http://burtleburtle.net/bob/c/lookup3.c
-    and HasherInt.H for a specialized version
+    and HasherInt.H for a specialised version
 
 SourceFiles
     Hasher.C
diff --git a/src/OpenFOAM/primitives/hashes/Hasher/HasherInt.H b/src/OpenFOAM/primitives/hashes/Hasher/HasherInt.H
index cc98a323fc..c7c23b5baf 100644
--- a/src/OpenFOAM/primitives/hashes/Hasher/HasherInt.H
+++ b/src/OpenFOAM/primitives/hashes/Hasher/HasherInt.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ InNamespace
     Foam
 
 Description
-    Optimized hashing functions.
+    Optimised hashing functions.
 
 See also
     Hasher.H
@@ -45,13 +45,13 @@ namespace Foam
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-    //- An optimized version of Hasher
+    //- An optimised version of Hasher
     //  \param[in] data - an array of uint32_t values
     //  \param[in] length - the number of values (not bytes)
     //  \param[in] seed - the previous hash, or an arbitrary value
     unsigned HasherInt(const uint32_t* data, size_t length, unsigned seed = 0);
 
-    //- An optimized version of Hasher, returning dual hash values
+    //- An optimised version of Hasher, returning dual hash values
     //  \param[in] data - an array of uint32_t values
     //  \param[in] length - the number of values (not bytes)
     //  \param[in] hash1 - the previous hash, or an arbitrary value
diff --git a/src/OpenFOAM/primitives/hashes/SHA1/SHA1.C b/src/OpenFOAM/primitives/hashes/SHA1/SHA1.C
index 40eeeab31f..41998964e6 100644
--- a/src/OpenFOAM/primitives/hashes/SHA1/SHA1.C
+++ b/src/OpenFOAM/primitives/hashes/SHA1/SHA1.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -100,8 +100,8 @@ inline void Foam::SHA1::set_uint32(unsigned char *cp, uint32_t v)
 
 void Foam::SHA1::processBytes(const void *data, size_t len)
 {
-    // already finalized, thus need to restart from nothing
-    if (finalized_)
+    // already finalised, thus need to restart from nothing
+    if (finalised_)
     {
         clear();
     }
@@ -347,15 +347,15 @@ void Foam::SHA1::clear()
     bufTotal_[0] = bufTotal_[1] = 0;
     bufLen_ = 0;
 
-    finalized_ = false;
+    finalised_ = false;
 }
 
 
-bool Foam::SHA1::finalize()
+bool Foam::SHA1::finalise()
 {
-    if (!finalized_)
+    if (!finalised_)
     {
-        finalized_ = true;
+        finalised_ = true;
 
         // account for unprocessed bytes
         uint32_t bytes = bufLen_;
@@ -368,7 +368,7 @@ bool Foam::SHA1::finalize()
             ++bufTotal_[1];
         }
 
-        // finalized, but no data!
+        // finalised, but no data!
         if (!bufTotal_[0] && !bufTotal_[1])
         {
             return false;
@@ -394,7 +394,7 @@ Foam::SHA1Digest Foam::SHA1::digest() const
 {
     SHA1Digest dig;
 
-    if (finalized_)
+    if (finalised_)
     {
         calcDigest(dig);
     }
@@ -402,7 +402,7 @@ Foam::SHA1Digest Foam::SHA1::digest() const
     {
         // avoid disturbing our data - use a copy
         SHA1 sha(*this);
-        if (sha.finalize())
+        if (sha.finalise())
         {
             sha.calcDigest(dig);
         }
diff --git a/src/OpenFOAM/primitives/hashes/SHA1/SHA1.H b/src/OpenFOAM/primitives/hashes/SHA1/SHA1.H
index 1e838c584b..debaa5cdca 100644
--- a/src/OpenFOAM/primitives/hashes/SHA1/SHA1.H
+++ b/src/OpenFOAM/primitives/hashes/SHA1/SHA1.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -70,8 +70,8 @@ class SHA1
 {
     // Private Data
 
-        //- Track if the hashsum has been finalized (added count, etc)
-        bool finalized_;
+        //- Track if the hashsum has been finalised (added count, etc)
+        bool finalised_;
 
         //- The hash sums
         uint32_t hashsumA_;
@@ -135,9 +135,9 @@ public:
         //- Append string for processing
         inline SHA1& append(const char* str);
 
-        //- Finalized the calculations (normally not needed directly).
+        //- Finalised the calculations (normally not needed directly).
         //  Returns false if no bytes were passed for processing
-        bool finalize();
+        bool finalise();
 
         //- Calculate current digest from appended data.
         SHA1Digest digest() const;
diff --git a/src/OpenFOAM/primitives/ints/int32/int32.H b/src/OpenFOAM/primitives/ints/int32/int32.H
index 5a65c3bac2..99db35b697 100644
--- a/src/OpenFOAM/primitives/ints/int32/int32.H
+++ b/src/OpenFOAM/primitives/ints/int32/int32.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -78,7 +78,7 @@ inline void writeEntry(Ostream& os, const int32_t value)
 }
 
 
-//- Template specialization for pTraits<int32_t>
+//- Template specialisation for pTraits<int32_t>
 template<>
 class pTraits<int32_t>
 {
diff --git a/src/OpenFOAM/primitives/ints/int64/int64.H b/src/OpenFOAM/primitives/ints/int64/int64.H
index 560a94b7dd..a9fe1c743a 100644
--- a/src/OpenFOAM/primitives/ints/int64/int64.H
+++ b/src/OpenFOAM/primitives/ints/int64/int64.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -74,7 +74,7 @@ inline void writeEntry(Ostream& os, const int64_t value)
 }
 
 
-//- Template specialization for pTraits<int64_t>
+//- Template specialisation for pTraits<int64_t>
 template<>
 class pTraits<int64_t>
 {
diff --git a/src/OpenFOAM/primitives/ints/uint32/uint32.H b/src/OpenFOAM/primitives/ints/uint32/uint32.H
index 196d935c82..1cf74e1127 100644
--- a/src/OpenFOAM/primitives/ints/uint32/uint32.H
+++ b/src/OpenFOAM/primitives/ints/uint32/uint32.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -64,7 +64,7 @@ bool read(const char*, uint32_t&);
 Istream& operator>>(Istream&, uint32_t&);
 Ostream& operator<<(Ostream&, const uint32_t);
 
-//- Template specialization for pTraits<uint32_t>
+//- Template specialisation for pTraits<uint32_t>
 template<>
 class pTraits<uint32_t>
 {
diff --git a/src/OpenFOAM/primitives/ints/uint64/uint64.H b/src/OpenFOAM/primitives/ints/uint64/uint64.H
index 4b4eaa21af..146e6bd55b 100644
--- a/src/OpenFOAM/primitives/ints/uint64/uint64.H
+++ b/src/OpenFOAM/primitives/ints/uint64/uint64.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -68,7 +68,7 @@ bool read(const char*, uint64_t&);
 Istream& operator>>(Istream&, uint64_t&);
 Ostream& operator<<(Ostream&, const uint64_t);
 
-//- Template specialization for pTraits<uint64_t>
+//- Template specialisation for pTraits<uint64_t>
 template<>
 class pTraits<uint64_t>
 {
diff --git a/src/OpenFOAM/primitives/quaternion/quaternion.H b/src/OpenFOAM/primitives/quaternion/quaternion.H
index ae0256f70f..9c00f500fd 100644
--- a/src/OpenFOAM/primitives/quaternion/quaternion.H
+++ b/src/OpenFOAM/primitives/quaternion/quaternion.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -132,12 +132,12 @@ public:
         inline quaternion(const vector& d, const scalar theta);
 
         //- Construct a rotation quaternion given the direction d
-        //  and cosine angle cosTheta and a if d is normalized
+        //  and cosine angle cosTheta and a if d is normalised
         inline quaternion
         (
             const vector& d,
             const scalar cosTheta,
-            const bool normalized
+            const bool normalised
         );
 
         //- Construct a real from the given scalar part, the vector part = zero
@@ -182,7 +182,7 @@ public:
                //  specified rotation sequence
                inline vector eulerAngles(const rotationSequence rs) const;
 
-               inline quaternion normalized() const;
+               inline quaternion normalised() const;
 
 
            // Edit
@@ -193,7 +193,7 @@ public:
                //- Vector part of the quaternion ( = axis of rotation)
                inline vector& v();
 
-               inline void normalize();
+               inline void normalise();
 
 
            // Transform
@@ -204,10 +204,10 @@ public:
                //- Rotate the given vector anti-clockwise
                inline vector invTransform(const vector& v) const;
 
-               //- Rotate the given quaternion (and normalize)
+               //- Rotate the given quaternion (and normalise)
                inline quaternion transform(const quaternion& q) const;
 
-               //- Rotate the given quaternion anti-clockwise (and normalize)
+               //- Rotate the given quaternion anti-clockwise (and normalise)
                inline quaternion invTransform(const quaternion& q) const;
 
 
@@ -241,8 +241,8 @@ inline scalar mag(const quaternion& q);
 //- Return the conjugate of the given quaternion
 inline quaternion conjugate(const quaternion& q);
 
-//- Return the normalized (unit) quaternion of the given quaternion
-inline quaternion normalize(const quaternion& q);
+//- Return the normalised (unit) quaternion of the given quaternion
+inline quaternion normalise(const quaternion& q);
 
 //- Return the inverse of the given quaternion
 inline quaternion inv(const quaternion& q);
diff --git a/src/OpenFOAM/primitives/quaternion/quaternionI.H b/src/OpenFOAM/primitives/quaternion/quaternionI.H
index 987b871226..e6ec211a5d 100644
--- a/src/OpenFOAM/primitives/quaternion/quaternionI.H
+++ b/src/OpenFOAM/primitives/quaternion/quaternionI.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -47,13 +47,13 @@ inline Foam::quaternion::quaternion
 (
     const vector& d,
     const scalar cosTheta,
-    const bool normalized
+    const bool normalised
 )
 {
     scalar cosHalfTheta2 = 0.5*(cosTheta + 1);
     w_ = sqrt(cosHalfTheta2);
 
-    if (normalized)
+    if (normalised)
     {
         v_ = sqrt(1 - cosHalfTheta2)*d;
     }
@@ -275,13 +275,13 @@ inline Foam::vector& Foam::quaternion::v()
 }
 
 
-inline Foam::quaternion Foam::quaternion::normalized() const
+inline Foam::quaternion Foam::quaternion::normalised() const
 {
     return *this/mag(*this);
 }
 
 
-inline void Foam::quaternion::normalize()
+inline void Foam::quaternion::normalise()
 {
     operator/=(mag(*this));
 }
@@ -307,7 +307,7 @@ inline Foam::vector Foam::quaternion::invTransform(const vector& u) const
 
 inline Foam::quaternion Foam::quaternion::transform(const quaternion& q) const
 {
-    return Foam::normalize((*this)*q);
+    return Foam::normalise((*this)*q);
 }
 
 
@@ -316,7 +316,7 @@ inline Foam::quaternion Foam::quaternion::invTransform
     const quaternion& q
 ) const
 {
-    return Foam::normalize(conjugate(*this)*q);
+    return Foam::normalise(conjugate(*this)*q);
 }
 
 
@@ -600,7 +600,7 @@ inline Foam::quaternion Foam::inv(const quaternion& q)
 }
 
 
-inline Foam::quaternion Foam::normalize(const quaternion& q)
+inline Foam::quaternion Foam::normalise(const quaternion& q)
 {
     return q/mag(q);
 }
diff --git a/src/OpenFOAM/primitives/septernion/septernion.C b/src/OpenFOAM/primitives/septernion/septernion.C
index 966778d03d..21ba36c3a2 100644
--- a/src/OpenFOAM/primitives/septernion/septernion.C
+++ b/src/OpenFOAM/primitives/septernion/septernion.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -93,7 +93,7 @@ Foam::septernion Foam::average
         }
     }
 
-    sa.r().normalize();
+    sa.r().normalise();
 
     return sa;
 }
diff --git a/src/OpenFOAM/primitives/strings/lists/stringListOps.H b/src/OpenFOAM/primitives/strings/lists/stringListOps.H
index f8f0cfbb5b..2ee8c7780c 100644
--- a/src/OpenFOAM/primitives/strings/lists/stringListOps.H
+++ b/src/OpenFOAM/primitives/strings/lists/stringListOps.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -69,7 +69,7 @@ namespace Foam
     );
 
     //- Return list indices for strings matching the regular expression
-    //  Template partial specialization of findMatchingStrings
+    //  Template partial specialisation of findMatchingStrings
     template<class StringType>
     labelList findStrings
     (
@@ -82,7 +82,7 @@ namespace Foam
     }
 
     //- Return list indices for strings matching the regular expression
-    //  Template partial specialization of findMatchingStrings
+    //  Template partial specialisation of findMatchingStrings
     template<class StringType>
     labelList findStrings
     (
@@ -96,7 +96,7 @@ namespace Foam
     }
 
     //- Return list indices for strings matching the regular expression
-    //  Template partial specialization of findMatchingStrings
+    //  Template partial specialisation of findMatchingStrings
     template<class StringType>
     labelList findStrings
     (
@@ -110,7 +110,7 @@ namespace Foam
     }
 
     //- Return list indices for strings matching the regular expression
-    //  Template partial specialization of findMatchingStrings
+    //  Template partial specialisation of findMatchingStrings
     template<class StringType>
     labelList findStrings
     (
@@ -124,7 +124,7 @@ namespace Foam
 
 
     //- Return list indices for strings matching one of the regular expression
-    //  Template partial specialization of findMatchingStrings
+    //  Template partial specialisation of findMatchingStrings
     template<class StringType>
     labelList findStrings
     (
@@ -151,7 +151,7 @@ namespace Foam
     );
 
     //- Extract elements of StringList when regular expression matches
-    //  Template partial specialization of subsetMatchingStrings
+    //  Template partial specialisation of subsetMatchingStrings
     template<class StringListType>
     StringListType subsetStrings
     (
@@ -164,7 +164,7 @@ namespace Foam
     }
 
     //- Extract elements of StringList when regular expression matches
-    //  Template partial specialization of subsetMatchingStrings
+    //  Template partial specialisation of subsetMatchingStrings
     template<class StringListType>
     StringListType subsetStrings
     (
@@ -178,7 +178,7 @@ namespace Foam
     }
 
     //- Extract elements of StringList when regular expression matches
-    //  Template partial specialization of subsetMatchingStrings
+    //  Template partial specialisation of subsetMatchingStrings
     template<class StringListType>
     StringListType subsetStrings
     (
@@ -192,7 +192,7 @@ namespace Foam
     }
 
     //- Extract elements of StringList when regular expression matches
-    //  Template partial specialization of subsetMatchingStrings
+    //  Template partial specialisation of subsetMatchingStrings
     template<class StringListType>
     StringListType subsetStrings
     (
@@ -205,7 +205,7 @@ namespace Foam
     }
 
     //- Extract elements of StringList when regular expression matches
-    //  Template partial specialization of subsetMatchingStrings
+    //  Template partial specialisation of subsetMatchingStrings
     template<class StringListType>
     StringListType subsetStrings
     (
@@ -231,7 +231,7 @@ namespace Foam
     );
 
     //- Inplace extract elements of StringList when regular expression matches
-    //  Template partial specialization of inplaceSubsetMatchingStrings
+    //  Template partial specialisation of inplaceSubsetMatchingStrings
     template<class StringListType>
     void inplaceSubsetStrings
     (
@@ -244,7 +244,7 @@ namespace Foam
     }
 
     //- Inplace extract elements of StringList when regular expression matches
-    //  Template partial specialization of inplaceSubsetMatchingStrings
+    //  Template partial specialisation of inplaceSubsetMatchingStrings
     template<class StringListType>
     void inplaceSubsetStrings
     (
@@ -258,7 +258,7 @@ namespace Foam
     }
 
     //- Inplace extract elements of StringList when regular expression matches
-    //  Template partial specialization of inplaceSubsetMatchingStrings
+    //  Template partial specialisation of inplaceSubsetMatchingStrings
     template<class StringListType>
     void inplaceSubsetStrings
     (
@@ -272,7 +272,7 @@ namespace Foam
     }
 
     //- Inplace extract elements of StringList when regular expression matches
-    //  Template partial specialization of inplaceSubsetMatchingStrings
+    //  Template partial specialisation of inplaceSubsetMatchingStrings
     template<class StringListType>
     void inplaceSubsetStrings
     (
@@ -285,7 +285,7 @@ namespace Foam
     }
 
     //- Inplace extract elements of StringList when regular expression matches
-    //  Template partial specialization of inplaceSubsetMatchingStrings
+    //  Template partial specialisation of inplaceSubsetMatchingStrings
     template<class StringListType>
     void inplaceSubsetStrings
     (
diff --git a/src/OpenFOAM/primitives/strings/wordRe/wordRe.H b/src/OpenFOAM/primitives/strings/wordRe/wordRe.H
index d03d4fea2e..5501c3e8b1 100644
--- a/src/OpenFOAM/primitives/strings/wordRe/wordRe.H
+++ b/src/OpenFOAM/primitives/strings/wordRe/wordRe.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -40,7 +40,7 @@ Description
 Note
     If the string contents are changed - eg, by the operator+=() or by
     string::replace(), etc - it will be necessary to use compile() or
-    recompile() to synchronize the regular expression.
+    recompile() to synchronise the regular expression.
 
 SourceFiles
     wordRe.C
diff --git a/src/OpenFOAM/primitives/transform/transform.H b/src/OpenFOAM/primitives/transform/transform.H
index 19da63bc19..ee591b1696 100644
--- a/src/OpenFOAM/primitives/transform/transform.H
+++ b/src/OpenFOAM/primitives/transform/transform.H
@@ -294,7 +294,7 @@ inline symmTensor transformMask<symmTensor>(const tensor& t)
 
 //- Estimate angle of vec in coordinate system (e0, e1, e0^e1).
 //  Is guaranteed to return increasing number but is not correct
-//  angle. Used for sorting angles.  All input vectors need to be normalized.
+//  angle. Used for sorting angles.  All input vectors need to be normalised.
 //
 //  Calculates scalar which increases with angle going from e0 to vec in
 //  the coordinate system e0, e1, e0^e1
diff --git a/src/OpenFOAM/primitives/triad/triad.C b/src/OpenFOAM/primitives/triad/triad.C
index 2fa460d2aa..13ba25c816 100644
--- a/src/OpenFOAM/primitives/triad/triad.C
+++ b/src/OpenFOAM/primitives/triad/triad.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2012-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -105,7 +105,7 @@ Foam::triad::triad(const tensor& t)
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
-void Foam::triad::orthogonalize()
+void Foam::triad::orthogonalise()
 {
     // Hack for 2D z-slab cases
     // if (!set(2))
diff --git a/src/OpenFOAM/primitives/triad/triad.H b/src/OpenFOAM/primitives/triad/triad.H
index ed1f4d507c..ef30a4b0fc 100644
--- a/src/OpenFOAM/primitives/triad/triad.H
+++ b/src/OpenFOAM/primitives/triad/triad.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2012-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -114,11 +114,11 @@ public:
         //- Return the vector orthogonal to the two provided
         static inline vector orthogonal(const vector& v1, const vector& v2);
 
-        //- Orthogonalize this triad so that it is ortho-normal
-        void orthogonalize();
+        //- Orthogonalise this triad so that it is ortho-normal
+        void orthogonalise();
 
-        //- Normalize each set axis vector to have a unit magnitude
-        void normalize();
+        //- Normalise each set axis vector to have a unit magnitude
+        void normalise();
 
         //- Align this triad with the given vector v
         //  by rotating the most aligned axis to be coincident with v
@@ -138,7 +138,7 @@ public:
         void operator=(const tensor& t);
 
         //- Add the triad t2 to this triad
-        //  without normalizing or orthogonalizing
+        //  without normalising or orthogonalising
         void operator+=(const triad& t2);
 
 
diff --git a/src/OpenFOAM/primitives/triad/triadI.H b/src/OpenFOAM/primitives/triad/triadI.H
index 9b2ffd1855..41ea7a3dc7 100644
--- a/src/OpenFOAM/primitives/triad/triadI.H
+++ b/src/OpenFOAM/primitives/triad/triadI.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2012-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -108,7 +108,7 @@ inline Foam::vector Foam::triad::orthogonal
 }
 
 
-inline void Foam::triad::normalize()
+inline void Foam::triad::normalise()
 {
     if (set(0)) operator[](0) /= mag(operator[](0));
     if (set(1)) operator[](1) /= mag(operator[](1));
diff --git a/src/ThermophysicalTransportModels/laminar/MaxwellStefan/MaxwellStefan.C b/src/ThermophysicalTransportModels/laminar/MaxwellStefan/MaxwellStefan.C
index fe37c44d5c..15c08a0bf2 100644
--- a/src/ThermophysicalTransportModels/laminar/MaxwellStefan/MaxwellStefan.C
+++ b/src/ThermophysicalTransportModels/laminar/MaxwellStefan/MaxwellStefan.C
@@ -478,7 +478,7 @@ transformDiffusionCoefficient()
     A.decompose();
     A.inv(invA);
 
-    // Calculate the generalized Fick's law diffusion coefficients
+    // Calculate the generalised Fick's law diffusion coefficients
     multiply(D, invA, B);
 }
 
@@ -566,7 +566,7 @@ void MaxwellStefan<BasicThermophysicalTransportModel>::transform
     }
 
     // Transform binary mass diffusion coefficients internal field DijPtrs ->
-    // generalized Fick's law diffusion coefficients DijPtrs
+    // generalised Fick's law diffusion coefficients DijPtrs
     transformDiffusionCoefficientFields();
 
     forAll(Y0.boundaryField(), patchi)
@@ -590,7 +590,7 @@ void MaxwellStefan<BasicThermophysicalTransportModel>::transform
         }
 
         // Transform binary mass diffusion coefficients patch field DijPtrs ->
-        // generalized Fick's law diffusion coefficients DijPtrs
+        // generalised Fick's law diffusion coefficients DijPtrs
         transformDiffusionCoefficientFields();
     }
 }
@@ -654,7 +654,7 @@ void MaxwellStefan<BasicThermophysicalTransportModel>::correct()
     }
 
     //- Transform the binary mass diffusion coefficients into the
-    //  the generalized Fick's law diffusion coefficients
+    //  the generalised Fick's law diffusion coefficients
     transform(Dij);
 
     // Accumulate the explicit part of the specie mass flux fields
diff --git a/src/ThermophysicalTransportModels/laminar/MaxwellStefan/MaxwellStefan.H b/src/ThermophysicalTransportModels/laminar/MaxwellStefan/MaxwellStefan.H
index c736a82185..b760cbd15e 100644
--- a/src/ThermophysicalTransportModels/laminar/MaxwellStefan/MaxwellStefan.H
+++ b/src/ThermophysicalTransportModels/laminar/MaxwellStefan/MaxwellStefan.H
@@ -25,7 +25,7 @@ Class
     Foam::turbulenceThermophysicalTransportModels::MaxwellStefan
 
 Description
-    Base class for multi-component Maxwell Stefan generalized Fick's law
+    Base class for multi-component Maxwell Stefan generalised Fick's law
     diffusion coefficients based temperature gradient heat flux model with
     optional Soret thermal diffusion of species.
 
@@ -86,7 +86,7 @@ class MaxwellStefan
             //  functions [kg/m/s]
             PtrList<Function2<scalar>> DTFuncs_;
 
-            //- Generalized Fick's law diffusion coefficients field list.
+            //- Generalised Fick's law diffusion coefficients field list.
             //  This is the diagonal of the mass diffusion coefficient matrix
             PtrList<volScalarField> Dii_;
 
@@ -123,13 +123,13 @@ class MaxwellStefan
 
             //- Matrix of composition coefficients at a cell or face
             //  used to transform the binary mass diffusion coefficients into
-            //  the generalized Fick's law diffusion coefficients
+            //  the generalised Fick's law diffusion coefficients
             scalarSquareMatrix B;
 
             //- Inverse of A
             scalarSquareMatrix invA;
 
-            //- Matrix of the generalized Fick's law diffusion coefficients
+            //- Matrix of the generalised Fick's law diffusion coefficients
             //  at a cell or face
             scalarSquareMatrix D;
 
@@ -137,7 +137,7 @@ class MaxwellStefan
     // Private member functions
 
         //- Transform the Binary mass diffusion coefficient matrix DD into the
-        //  matrix of the generalized Fick's law diffusion coefficients D
+        //  matrix of the generalised Fick's law diffusion coefficients D
         void transformDiffusionCoefficient();
 
         //- Calls transformDiffusionCoefficient() for each cell and patch face
diff --git a/src/ThermophysicalTransportModels/laminar/MaxwellStefanFourier/MaxwellStefanFourier.H b/src/ThermophysicalTransportModels/laminar/MaxwellStefanFourier/MaxwellStefanFourier.H
index 8700d10acc..091ccc0141 100644
--- a/src/ThermophysicalTransportModels/laminar/MaxwellStefanFourier/MaxwellStefanFourier.H
+++ b/src/ThermophysicalTransportModels/laminar/MaxwellStefanFourier/MaxwellStefanFourier.H
@@ -25,7 +25,7 @@ Class
     Foam::laminarThermophysicalTransportModels::MaxwellStefanFourier
 
 Description
-    Multi-component Maxwell Stefan generalized Fick's law diffusion coefficients
+    Multi-component Maxwell Stefan generalised Fick's law diffusion coefficients
     and Fourier based temperature gradient heat flux model with optional Soret
     thermal diffusion of species for laminar flow.
 
diff --git a/src/atmosphericModels/derivedFvPatchFields/atmBoundaryLayer/atmBoundaryLayer.C b/src/atmosphericModels/derivedFvPatchFields/atmBoundaryLayer/atmBoundaryLayer.C
index dfefbc9d6f..c3e19561ef 100644
--- a/src/atmosphericModels/derivedFvPatchFields/atmBoundaryLayer/atmBoundaryLayer.C
+++ b/src/atmosphericModels/derivedFvPatchFields/atmBoundaryLayer/atmBoundaryLayer.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -43,7 +43,7 @@ void Foam::atmBoundaryLayer::init()
             << abort(FatalError);
     }
 
-    // Ensure direction vectors are normalized
+    // Ensure direction vectors are normalised
     flowDir_ /= mag(flowDir_);
     zDir_ /= mag(zDir_);
 
diff --git a/src/atmosphericModels/porosityModels/powerLawLopesdaCosta/powerLawLopesdaCosta.C b/src/atmosphericModels/porosityModels/powerLawLopesdaCosta/powerLawLopesdaCosta.C
index 7c6ec528e3..b890112396 100644
--- a/src/atmosphericModels/porosityModels/powerLawLopesdaCosta/powerLawLopesdaCosta.C
+++ b/src/atmosphericModels/porosityModels/powerLawLopesdaCosta/powerLawLopesdaCosta.C
@@ -70,7 +70,7 @@ Foam::porosityModels::powerLawLopesdaCostaZone::powerLawLopesdaCostaZone
     List<wordRe> groundPatches(coeffs.lookup("groundPatches"));
 
     // Functional form of the porosity surface area per unit volume as a
-    // function of the normalized vertical position
+    // function of the normalised vertical position
     autoPtr<Function1<scalar >> SigmaFunc
     (
         Function1<scalar>::New("Sigma", dict)
@@ -248,7 +248,7 @@ Foam::porosityModels::powerLawLopesdaCostaZone::powerLawLopesdaCostaZone
         }
     }
 
-    // Create the normalized height field
+    // Create the normalised height field
     scalarField zNorm(zBottom/(zBottom + zTop));
 
     // Create the porosity surface area per unit volume zone field
diff --git a/src/combustionModels/EDC/EDC.H b/src/combustionModels/EDC/EDC.H
index 20779f0e6a..86a9efc723 100644
--- a/src/combustionModels/EDC/EDC.H
+++ b/src/combustionModels/EDC/EDC.H
@@ -67,7 +67,7 @@ Description
             Changes coefficients exp1 = 3 and exp2 = 3
 
             Magnussen, B. (1981, January).
-            On the structure of turbulence and a generalized
+            On the structure of turbulence and a generalised
             eddy dissipation concept for chemical reaction in turbulent flow.
             In 19th Aerospace Sciences Meeting (p. 42).
 
@@ -76,7 +76,7 @@ Description
             Changes coefficients exp1 = 2 and exp2 = 3
 
             Gran, I. R., & Magnussen, B. F. (1996).
-            A numerical study of a bluff-body stabilized diffusion flame.
+            A numerical study of a bluff-body stabilised diffusion flame.
             Part 2. Influence of combustion modeling and finite-rate chemistry.
             Combustion Science and Technology, 119(1-6), 191-217.
 
diff --git a/src/combustionModels/FSD/FSD.H b/src/combustionModels/FSD/FSD.H
index 60b0a2b953..4f01fe6e91 100644
--- a/src/combustionModels/FSD/FSD.H
+++ b/src/combustionModels/FSD/FSD.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -92,7 +92,7 @@ class FSD
         //- Fuel mass concentration on the fuel stream
         dimensionedScalar YFuelFuelStream_;
 
-        //- Oxygen mass concentration on the oxidizer stream
+        //- Oxygen mass concentration on the oxidiser stream
         dimensionedScalar YO2OxiStream_;
 
         //- Similarity constant for the sub-grid ft fluctuations
diff --git a/src/combustionModels/radiationModels/sootModels/mixtureFraction/mixtureFraction.H b/src/combustionModels/radiationModels/sootModels/mixtureFraction/mixtureFraction.H
index 676dca9339..58b26dfe79 100644
--- a/src/combustionModels/radiationModels/sootModels/mixtureFraction/mixtureFraction.H
+++ b/src/combustionModels/radiationModels/sootModels/mixtureFraction/mixtureFraction.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -36,7 +36,7 @@ Description
     The soot is not considered into the thermodynamics of the system and it
     is not considered as an extra specie in the solver.
 
-    The spacial distribution is given by the normalization of the first product
+    The spacial distribution is given by the normalisation of the first product
     on the rhs of the reaction by default or it can be added as input.
 
     For example in the radiationProperties dictionary set:
diff --git a/src/combustionModels/singleStepCombustion/singleStepCombustion.C b/src/combustionModels/singleStepCombustion/singleStepCombustion.C
index 8e7c22d159..3936d4a459 100644
--- a/src/combustionModels/singleStepCombustion/singleStepCombustion.C
+++ b/src/combustionModels/singleStepCombustion/singleStepCombustion.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -110,7 +110,7 @@ void Foam::combustionModels::singleStepCombustion::calculateMaxProducts()
         }
     }
 
-    // Normalize the stoichiometric coeff to mass
+    // Normalise the stoichiometric coeff to mass
     forAll(specieStoichCoeffs_, i)
     {
         specieStoichCoeffs_[i] =
diff --git a/src/conversion/ensight/file/ensightFile.H b/src/conversion/ensight/file/ensightFile.H
index f0285d6fe1..620b974695 100644
--- a/src/conversion/ensight/file/ensightFile.H
+++ b/src/conversion/ensight/file/ensightFile.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::ensightFile
 
 Description
-    Ensight output with specialized write() for strings, integers and floats.
+    Ensight output with specialised write() for strings, integers and floats.
     Correctly handles binary write as well.
 
 \*---------------------------------------------------------------------------*/
diff --git a/src/conversion/ensight/file/ensightGeoFile.H b/src/conversion/ensight/file/ensightGeoFile.H
index f369aa2abf..52c1ddf0b8 100644
--- a/src/conversion/ensight/file/ensightGeoFile.H
+++ b/src/conversion/ensight/file/ensightGeoFile.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::ensightGeoFile
 
 Description
-    Specialized Ensight output with extra geometry file header
+    Specialised Ensight output with extra geometry file header
 
 \*---------------------------------------------------------------------------*/
 
diff --git a/src/conversion/ensight/part/ensightPart.H b/src/conversion/ensight/part/ensightPart.H
index d2a720b0f7..6e709da014 100644
--- a/src/conversion/ensight/part/ensightPart.H
+++ b/src/conversion/ensight/part/ensightPart.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -332,7 +332,7 @@ public:
         ) const;
 
 
-        //- Write generalized field components
+        //- Write generalised field components
         //  optionally write data per node
         template<class Type>
         void writeField
diff --git a/src/conversion/ensight/part/ensightPartTemplates.C b/src/conversion/ensight/part/ensightPartTemplates.C
index 7b094f4575..6c0a160627 100644
--- a/src/conversion/ensight/part/ensightPartTemplates.C
+++ b/src/conversion/ensight/part/ensightPartTemplates.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,7 +22,7 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Description
-    Template to write generalized field components
+    Template to write generalised field components
 
 \*---------------------------------------------------------------------------*/
 
diff --git a/src/conversion/ensight/part/ensightParts.H b/src/conversion/ensight/part/ensightParts.H
index a8ff567781..497b1d4499 100644
--- a/src/conversion/ensight/part/ensightParts.H
+++ b/src/conversion/ensight/part/ensightParts.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -135,7 +135,7 @@ public:
         ) const;
 
 
-        //- Write generalized volume field components
+        //- Write generalised volume field components
         template<class Type>
         void writeField
         (
diff --git a/src/conversion/ensight/part/ensightPartsTemplates.C b/src/conversion/ensight/part/ensightPartsTemplates.C
index 75551a17cf..6b4b59410f 100644
--- a/src/conversion/ensight/part/ensightPartsTemplates.C
+++ b/src/conversion/ensight/part/ensightPartsTemplates.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,7 +22,7 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Description
-    Template to write generalized field components
+    Template to write generalised field components
 
 \*---------------------------------------------------------------------------*/
 
diff --git a/src/conversion/meshReader/meshReader.H b/src/conversion/meshReader/meshReader.H
index 2a82ecd362..5da6998853 100644
--- a/src/conversion/meshReader/meshReader.H
+++ b/src/conversion/meshReader/meshReader.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -36,7 +36,7 @@ Description
 
     The derived classes are responsible for providing the protected data.
     This implementation is somewhat messy, but could/should be restructured
-    to provide a more generalized reader (at the moment it has been written
+    to provide a more generalised reader (at the moment it has been written
     for converting pro-STAR data).
 
     The meshReader supports cellTable information (see new user's guide entry).
diff --git a/src/conversion/meshTables/README b/src/conversion/meshTables/README
index 0c81bbc10a..b5cccb7734 100644
--- a/src/conversion/meshTables/README
+++ b/src/conversion/meshTables/README
@@ -1,4 +1,4 @@
-Star-CD uses a so-called 'cell table' to organize properties. The ccm and
+Star-CD uses a so-called 'cell table' to organise properties. The ccm and
 star4 converters preserve this information as a Map of dictionaries under
 "constant/cellTable" and as cell data under "constant/polyMesh/cellTableId".
 
diff --git a/src/conversion/meshTables/remappingDict b/src/conversion/meshTables/remappingDict
index eea1990758..d0182175ce 100644
--- a/src/conversion/meshTables/remappingDict
+++ b/src/conversion/meshTables/remappingDict
@@ -14,7 +14,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 // this is a simple example of remapping cellTable and boundaryRegion entries
-// NB: can't yet combine boundaryRegions, since this reorganizes the mesh faces
+// NB: can't yet combine boundaryRegions, since this reorganises the mesh faces
 
 // rename/combine cellTable entries
 //   newName ( listOldNames );
diff --git a/src/dynamicMesh/fvMeshDistribute/fvMeshDistribute.C b/src/dynamicMesh/fvMeshDistribute/fvMeshDistribute.C
index d04fbcc8b4..4bbefc590d 100644
--- a/src/dynamicMesh/fvMeshDistribute/fvMeshDistribute.C
+++ b/src/dynamicMesh/fvMeshDistribute/fvMeshDistribute.C
@@ -1225,7 +1225,7 @@ Foam::autoPtr<Foam::mapPolyMesh> Foam::fvMeshDistribute::doRemoveCells
     // Mesh change engine
     polyTopoChange meshMod(mesh_);
 
-    // Cell removal topo engine. Do NOT synchronize parallel since
+    // Cell removal topo engine. Do NOT synchronise parallel since
     // we are doing a local cell removal.
     removeCells cellRemover(mesh_, false);
 
diff --git a/src/dynamicMesh/fvMeshSubset/fvMeshSubset.C b/src/dynamicMesh/fvMeshSubset/fvMeshSubset.C
index 1ae5dd2c7f..3989746f09 100644
--- a/src/dynamicMesh/fvMeshSubset/fvMeshSubset.C
+++ b/src/dynamicMesh/fvMeshSubset/fvMeshSubset.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -97,7 +97,7 @@ void Foam::fvMeshSubset::doCoupledPatches
     labelList& nCellsUsingFace
 ) const
 {
-    // Synchronize facesToSubset on both sides of coupled patches.
+    // Synchronise facesToSubset on both sides of coupled patches.
     // Marks faces that become 'uncoupled' with 3.
 
     const polyBoundaryMesh& oldPatches = baseMesh().boundaryMesh();
diff --git a/src/dynamicMesh/fvMeshSubset/fvMeshSubset.H b/src/dynamicMesh/fvMeshSubset/fvMeshSubset.H
index cf0b033866..aeca4fcff2 100644
--- a/src/dynamicMesh/fvMeshSubset/fvMeshSubset.H
+++ b/src/dynamicMesh/fvMeshSubset/fvMeshSubset.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -33,7 +33,7 @@ Description
     - a user supplied patch
     - a newly created patch "oldInternalFaces"
 
-    - setCellSubset is for small subsets. Uses Maps to minimize memory.
+    - setCellSubset is for small subsets. Uses Maps to minimise memory.
     - setLargeCellSubset is for largish subsets (>10% of mesh).
       Uses labelLists instead.
 
diff --git a/src/dynamicMesh/meshCut/cellCuts/cellCuts.C b/src/dynamicMesh/meshCut/cellCuts/cellCuts.C
index d40e72d896..dc3627c7d5 100644
--- a/src/dynamicMesh/meshCut/cellCuts/cellCuts.C
+++ b/src/dynamicMesh/meshCut/cellCuts/cellCuts.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -42,7 +42,7 @@ namespace Foam
 {
     defineTypeNameAndDebug(cellCuts, 0);
 
-    //- Template specialization for pTraits<edge> so we can use syncTools
+    //- Template specialisation for pTraits<edge> so we can use syncTools
     //  functionality
     template<>
     class pTraits<edge>
diff --git a/src/dynamicMesh/meshCut/cellLooper/topoCellLooper.H b/src/dynamicMesh/meshCut/cellLooper/topoCellLooper.H
index b74faa0c82..f66d1c72ea 100644
--- a/src/dynamicMesh/meshCut/cellLooper/topoCellLooper.H
+++ b/src/dynamicMesh/meshCut/cellLooper/topoCellLooper.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::topoCellLooper
 
 Description
-    Implementation of cellLooper. This one recognizes splitHexes and tries
+    Implementation of cellLooper. This one recognises splitHexes and tries
     to make a cut such that if the neighbour was split (in a previous iteration)
     this one also gets split in the same direction so that the result
     will be a mesh without splitHexes.
diff --git a/src/dynamicMesh/meshCut/refineCell/refineCell.C b/src/dynamicMesh/meshCut/refineCell/refineCell.C
index ad9cf59f0c..1cec8147e6 100644
--- a/src/dynamicMesh/meshCut/refineCell/refineCell.C
+++ b/src/dynamicMesh/meshCut/refineCell/refineCell.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -50,7 +50,7 @@ Foam::refineCell::refineCell(const label celli, const vector& direction)
     }
     else if (mag(magDir - 1) > small)
     {
-        // Normalize
+        // Normalise
         direction_ /= mag(direction_);
     }
 }
@@ -71,7 +71,7 @@ Foam::refineCell::refineCell(Istream& is)
     }
     else if (mag(magDir - 1) > small)
     {
-        // Normalize
+        // Normalise
         direction_ /= mag(direction_);
     }
 }
diff --git a/src/dynamicMesh/meshCut/refineCell/refineCell.H b/src/dynamicMesh/meshCut/refineCell/refineCell.H
index 354252cc31..3c8d1f5e08 100644
--- a/src/dynamicMesh/meshCut/refineCell/refineCell.H
+++ b/src/dynamicMesh/meshCut/refineCell/refineCell.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -61,7 +61,7 @@ class refineCell
     //- Cell label
     label cellNo_;
 
-    //- Preferred refinement direction (always normalized).
+    //- Preferred refinement direction (always normalised).
     vector direction_;
 
 public:
@@ -71,10 +71,10 @@ public:
         //- Null
         refineCell();
 
-        //- From components. Vector will be normalized upon construction.
+        //- From components. Vector will be normalised upon construction.
         refineCell(const label, const vector&);
 
-        //- From Istream. Vector will be normalized upon construction.
+        //- From Istream. Vector will be normalised upon construction.
         refineCell(Istream& is);
 
 
diff --git a/src/dynamicMesh/motionSmoother/polyMeshCheck/polyMeshCheck.C b/src/dynamicMesh/motionSmoother/polyMeshCheck/polyMeshCheck.C
index 416d0f6ea2..814947484d 100644
--- a/src/dynamicMesh/motionSmoother/polyMeshCheck/polyMeshCheck.C
+++ b/src/dynamicMesh/motionSmoother/polyMeshCheck/polyMeshCheck.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -1336,7 +1336,7 @@ bool Foam::polyMeshCheck::checkFaceAngles
             // Get vertex after fp
             label fp1 = f.fcIndex(fp0);
 
-            // Normalized vector between two consecutive points
+            // Normalised vector between two consecutive points
             vector e10(p[f[fp1]] - p[f[fp0]]);
             scalar magE10 = mag(e10);
             e10 /= magE10 + vSmall;
diff --git a/src/dynamicMesh/polyTopoChange/polyTopoChange/combineFaces.C b/src/dynamicMesh/polyTopoChange/polyTopoChange/combineFaces.C
index 01c4ff7665..822de21cc3 100644
--- a/src/dynamicMesh/polyTopoChange/polyTopoChange/combineFaces.C
+++ b/src/dynamicMesh/polyTopoChange/polyTopoChange/combineFaces.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -68,7 +68,7 @@ bool Foam::combineFaces::convexFace
         // Get vertex after fp
         label fp1 = f.fcIndex(fp0);
 
-        // Normalized vector between two consecutive points
+        // Normalised vector between two consecutive points
         vector e10(points[f[fp1]] - points[f[fp0]]);
         scalar magE10 = mag(e10);
         e10 /= magE10 + vSmall;
diff --git a/src/dynamicMesh/polyTopoChange/polyTopoChange/hexRef8/hexRef8.C b/src/dynamicMesh/polyTopoChange/polyTopoChange/hexRef8/hexRef8.C
index 0e6e0a2222..ad08d56f3c 100644
--- a/src/dynamicMesh/polyTopoChange/polyTopoChange/hexRef8/hexRef8.C
+++ b/src/dynamicMesh/polyTopoChange/polyTopoChange/hexRef8/hexRef8.C
@@ -3368,7 +3368,7 @@ Foam::labelListList Foam::hexRef8::setRefinement
         }
     }
 
-    // Synchronize edgeMidPoint across coupled patches. Take max so that
+    // Synchronise edgeMidPoint across coupled patches. Take max so that
     // any split takes precedence.
     syncTools::syncEdgeList
     (
@@ -3554,7 +3554,7 @@ Foam::labelListList Foam::hexRef8::setRefinement
     }
 
 
-    // Synchronize faceMidPoint across coupled patches. (logical or)
+    // Synchronise faceMidPoint across coupled patches. (logical or)
     syncTools::syncFaceList
     (
         mesh_,
@@ -4898,7 +4898,7 @@ void Foam::hexRef8::checkRefinementLevels
     }
 
 
-    // Check pointLevel is synchronized
+    // Check pointLevel is synchronised
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     {
         labelList syncPointLevel(pointLevel_);
diff --git a/src/dynamicMesh/polyTopoChange/polyTopoChange/polyTopoChange.C b/src/dynamicMesh/polyTopoChange/polyTopoChange/polyTopoChange.C
index 97bfb07916..5e1e8bc23c 100644
--- a/src/dynamicMesh/polyTopoChange/polyTopoChange/polyTopoChange.C
+++ b/src/dynamicMesh/polyTopoChange/polyTopoChange/polyTopoChange.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -595,7 +595,7 @@ Foam::label Foam::polyTopoChange::getCellOrder
     label cellInOrder = 0;
 
 
-    // Work arrays. Kept outside of loop to minimize allocations.
+    // Work arrays. Kept outside of loop to minimise allocations.
     // - neighbour cells
     DynamicList<label> nbrs;
     // - corresponding weights
diff --git a/src/dynamicMesh/polyTopoChange/polyTopoChange/removeCells.H b/src/dynamicMesh/polyTopoChange/polyTopoChange/removeCells.H
index 7aad535b08..83fd7d0a89 100644
--- a/src/dynamicMesh/polyTopoChange/polyTopoChange/removeCells.H
+++ b/src/dynamicMesh/polyTopoChange/polyTopoChange/removeCells.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -64,7 +64,7 @@ class removeCells
         //- Reference to mesh
         const polyMesh& mesh_;
 
-        //- Whether or not to synchronize parallel case.
+        //- Whether or not to synchronise parallel case.
         const bool syncPar_;
 
 
@@ -86,7 +86,7 @@ public:
 
     // Constructors
 
-        //- Construct from mesh. syncPar: do parallel synchronization.
+        //- Construct from mesh. syncPar: do parallel synchronisation.
         removeCells(const polyMesh& mesh, const bool syncPar = true);
 
 
diff --git a/src/dynamicMesh/polyTopoChange/polyTopoChange/removeFaces.C b/src/dynamicMesh/polyTopoChange/polyTopoChange/removeFaces.C
index ee0b7f63c0..ac82291ee9 100644
--- a/src/dynamicMesh/polyTopoChange/polyTopoChange/removeFaces.C
+++ b/src/dynamicMesh/polyTopoChange/polyTopoChange/removeFaces.C
@@ -1004,7 +1004,7 @@ void Foam::removeFaces::setRefinement
 
 
 
-        // Check locally (before synchronizing) for strangeness
+        // Check locally (before synchronising) for strangeness
         forAll(nFacesPerEdge, edgeI)
         {
             if (nFacesPerEdge[edgeI] == 1)
@@ -1024,7 +1024,7 @@ void Foam::removeFaces::setRefinement
         }
 
 
-        // Synchronize edge usage. This is to make sure that both sides remove
+        // Synchronise edge usage. This is to make sure that both sides remove
         // (or not remove) an edge on the boundary at the same time.
         //
         // Coupled edges (edge0, edge1 are opposite each other)
@@ -1271,7 +1271,7 @@ void Foam::removeFaces::setRefinement
             }
         }
 
-        // Check locally (before synchronizing) for strangeness
+        // Check locally (before synchronising) for strangeness
         forAll(nEdgesPerPoint, pointi)
         {
             if (nEdgesPerPoint[pointi] == 1)
@@ -1284,7 +1284,7 @@ void Foam::removeFaces::setRefinement
             }
         }
 
-        // Synchronize point usage. This is to make sure that both sides remove
+        // Synchronise point usage. This is to make sure that both sides remove
         // (or not remove) a point on the boundary at the same time.
         syncTools::syncPointList
         (
diff --git a/src/fileFormats/sampledSetWriters/csv/csvSetWriter.C b/src/fileFormats/sampledSetWriters/csv/csvSetWriter.C
index ce3f4c6a54..49142090b6 100644
--- a/src/fileFormats/sampledSetWriters/csv/csvSetWriter.C
+++ b/src/fileFormats/sampledSetWriters/csv/csvSetWriter.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -125,7 +125,7 @@ void Foam::csvSetWriter<Type>::writeSeparator(Ostream& os) const
 
 namespace Foam
 {
-    // otherwise compiler complains about specialization
+    // otherwise compiler complains about specialisation
     template<>
     void csvSetWriter<scalar>::writeHeader
     (
diff --git a/src/fileFormats/sampledSetWriters/writer.H b/src/fileFormats/sampledSetWriters/writer.H
index a5a67226d7..00b0372070 100644
--- a/src/fileFormats/sampledSetWriters/writer.H
+++ b/src/fileFormats/sampledSetWriters/writer.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -148,7 +148,7 @@ public:
         ) const = 0;
 
         //- General entry point for writing.
-        //  The data is organized in a set of point with one or more values
+        //  The data is organised in a set of point with one or more values
         //  per point
         virtual void write
         (
@@ -159,7 +159,7 @@ public:
         ) const = 0;
 
         //- General entry point for writing.
-        //  The data is organized in a set of point with one or more values
+        //  The data is organised in a set of point with one or more values
         //  per point
         virtual void write
         (
diff --git a/src/finiteVolume/cfdTools/general/MRF/MRFZone.C b/src/finiteVolume/cfdTools/general/MRF/MRFZone.C
index 119408073e..dee4f44931 100644
--- a/src/finiteVolume/cfdTools/general/MRF/MRFZone.C
+++ b/src/finiteVolume/cfdTools/general/MRF/MRFZone.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -118,7 +118,7 @@ void Foam::MRFZone::setMRFFaces()
         }
     }
 
-    // Synchronize the faceType across processor patches
+    // Synchronise the faceType across processor patches
     syncTools::syncFaceList(mesh_, faceType, maxEqOp<label>());
 
     // Now we have for faceType:
diff --git a/src/finiteVolume/fields/fvPatchFields/basic/sliced/slicedFvPatchField.H b/src/finiteVolume/fields/fvPatchFields/basic/sliced/slicedFvPatchField.H
index bbbff5fee8..6ea8f03535 100644
--- a/src/finiteVolume/fields/fvPatchFields/basic/sliced/slicedFvPatchField.H
+++ b/src/finiteVolume/fields/fvPatchFields/basic/sliced/slicedFvPatchField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::slicedFvPatchField
 
 Description
-    Specialization of fvPatchField which creates the underlying
+    Specialisation of fvPatchField which creates the underlying
     fvPatchField as a slice of the given complete field.
 
     The destructor is wrapped to avoid deallocation of the storage of the
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/flowRateInletVelocity/flowRateInletVelocityFvPatchVectorField.H b/src/finiteVolume/fields/fvPatchFields/derived/flowRateInletVelocity/flowRateInletVelocityFvPatchVectorField.H
index e80b0ac6f5..7423110617 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/flowRateInletVelocity/flowRateInletVelocityFvPatchVectorField.H
+++ b/src/finiteVolume/fields/fvPatchFields/derived/flowRateInletVelocity/flowRateInletVelocityFvPatchVectorField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -120,7 +120,7 @@ class flowRateInletVelocityFvPatchVectorField
         //- Is volumetric?
         bool volumetric_;
 
-        //- Name of the density field used to normalize the mass flux
+        //- Name of the density field used to normalise the mass flux
         word rhoName_;
 
         //- Rho initialisation value (for start; if value not supplied)
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/flowRateOutletVelocity/flowRateOutletVelocityFvPatchVectorField.H b/src/finiteVolume/fields/fvPatchFields/derived/flowRateOutletVelocity/flowRateOutletVelocityFvPatchVectorField.H
index 43c7451adc..305b90edf9 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/flowRateOutletVelocity/flowRateOutletVelocityFvPatchVectorField.H
+++ b/src/finiteVolume/fields/fvPatchFields/derived/flowRateOutletVelocity/flowRateOutletVelocityFvPatchVectorField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2017-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2017-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -114,7 +114,7 @@ class flowRateOutletVelocityFvPatchVectorField
         //- Is volumetric?
         bool volumetric_;
 
-        //- Name of the density field used to normalize the mass flux
+        //- Name of the density field used to normalise the mass flux
         word rhoName_;
 
         //- Rho initialisation value (for start; if value not supplied)
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/mappedFlowRate/mappedFlowRateFvPatchVectorField.H b/src/finiteVolume/fields/fvPatchFields/derived/mappedFlowRate/mappedFlowRateFvPatchVectorField.H
index ab154c5e9a..7ab3b95995 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/mappedFlowRate/mappedFlowRateFvPatchVectorField.H
+++ b/src/finiteVolume/fields/fvPatchFields/derived/mappedFlowRate/mappedFlowRateFvPatchVectorField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -84,7 +84,7 @@ class mappedFlowRateFvPatchVectorField
         //- Name of the local mass flux
         word phiName_;
 
-        //- Name of the density field used to normalize the mass flux
+        //- Name of the density field used to normalise the mass flux
         word rhoName_;
 
 
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/matchedFlowRateOutletVelocity/matchedFlowRateOutletVelocityFvPatchVectorField.H b/src/finiteVolume/fields/fvPatchFields/derived/matchedFlowRateOutletVelocity/matchedFlowRateOutletVelocityFvPatchVectorField.H
index d18ef6c748..044e84deeb 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/matchedFlowRateOutletVelocity/matchedFlowRateOutletVelocityFvPatchVectorField.H
+++ b/src/finiteVolume/fields/fvPatchFields/derived/matchedFlowRateOutletVelocity/matchedFlowRateOutletVelocityFvPatchVectorField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2017-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2017-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -80,7 +80,7 @@ class matchedFlowRateOutletVelocityFvPatchVectorField
         //- Is volumetric?
         bool volumetric_;
 
-        //- Name of the density field used to normalize the mass flux
+        //- Name of the density field used to normalise the mass flux
         word rhoName_;
 
 
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/swirlFlowRateInletVelocity/swirlFlowRateInletVelocityFvPatchVectorField.H b/src/finiteVolume/fields/fvPatchFields/derived/swirlFlowRateInletVelocity/swirlFlowRateInletVelocityFvPatchVectorField.H
index cdaebfa6a8..dc09165f8f 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/swirlFlowRateInletVelocity/swirlFlowRateInletVelocityFvPatchVectorField.H
+++ b/src/finiteVolume/fields/fvPatchFields/derived/swirlFlowRateInletVelocity/swirlFlowRateInletVelocityFvPatchVectorField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -93,7 +93,7 @@ class swirlFlowRateInletVelocityFvPatchVectorField
         //- Name of the flux transporting the field
         const word phiName_;
 
-        //- Name of the density field used to normalize the mass flux
+        //- Name of the density field used to normalise the mass flux
         const word rhoName_;
 
         //- Origin of the rotation
diff --git a/src/finiteVolume/fields/fvsPatchFields/basic/sliced/slicedFvsPatchField.H b/src/finiteVolume/fields/fvsPatchFields/basic/sliced/slicedFvsPatchField.H
index f2cb477b5c..97eaf134ff 100644
--- a/src/finiteVolume/fields/fvsPatchFields/basic/sliced/slicedFvsPatchField.H
+++ b/src/finiteVolume/fields/fvsPatchFields/basic/sliced/slicedFvsPatchField.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::slicedFvsPatchField
 
 Description
-    Specialization of fvsPatchField which creates the underlying
+    Specialisation of fvsPatchField which creates the underlying
     fvsPatchField as a slice of the given complete field.
 
     The destructor is wrapped to avoid deallocation of the storage of the
diff --git a/src/finiteVolume/finiteVolume/ddtSchemes/CrankNicolsonDdtScheme/CrankNicolsonDdtScheme.H b/src/finiteVolume/finiteVolume/ddtSchemes/CrankNicolsonDdtScheme/CrankNicolsonDdtScheme.H
index b6e2a1fb2f..bc611f3678 100644
--- a/src/finiteVolume/finiteVolume/ddtSchemes/CrankNicolsonDdtScheme/CrankNicolsonDdtScheme.H
+++ b/src/finiteVolume/finiteVolume/ddtSchemes/CrankNicolsonDdtScheme/CrankNicolsonDdtScheme.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -29,7 +29,7 @@ Description
     previous time-step fields as well as the previous time-step ddt.
 
     The Crank-Nicolson scheme is often unstable for complex flows in complex
-    geometries and it is necessary to "off-centre" the scheme to stabilize it
+    geometries and it is necessary to "off-centre" the scheme to stabilise it
     while retaining greater temporal accuracy than the first-order
     Euler-implicit scheme.  Off-centering is specified via the mandatory
     coefficient \c ocCoeff in the range [0,1] following the scheme name e.g.
diff --git a/src/finiteVolume/finiteVolume/gradSchemes/LeastSquaresGrad/LeastSquaresVectors.C b/src/finiteVolume/finiteVolume/gradSchemes/LeastSquaresGrad/LeastSquaresVectors.C
index 22d8492618..f70e0c20ba 100644
--- a/src/finiteVolume/finiteVolume/gradSchemes/LeastSquaresGrad/LeastSquaresVectors.C
+++ b/src/finiteVolume/finiteVolume/gradSchemes/LeastSquaresGrad/LeastSquaresVectors.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -87,7 +87,7 @@ void Foam::fv::LeastSquaresVectors<Stencil>::calcLeastSquaresVectors()
         // Remove the components corresponding to the empty directions
         dd -= dd0;
 
-        // Finalize the gradient weighting vectors
+        // Finalise the gradient weighting vectors
         lsvi[0] = Zero;
         for (label j=1; j<lsvi.size(); j++)
         {
diff --git a/src/finiteVolume/finiteVolume/snGradSchemes/faceCorrectedSnGrad/faceCorrectedSnGrad.C b/src/finiteVolume/finiteVolume/snGradSchemes/faceCorrectedSnGrad/faceCorrectedSnGrad.C
index ad98a11912..a07ee035fe 100644
--- a/src/finiteVolume/finiteVolume/snGradSchemes/faceCorrectedSnGrad/faceCorrectedSnGrad.C
+++ b/src/finiteVolume/finiteVolume/snGradSchemes/faceCorrectedSnGrad/faceCorrectedSnGrad.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -97,7 +97,7 @@ Foam::fv::faceCorrectedSnGrad<Type>::fullGradCorrection
             fgrad += edgen*pvfe;
         }
 
-        // Finalize face-gradient by dividing by face area
+        // Finalise face-gradient by dividing by face area
         fgrad /= magSf[facei];
 
         // Calculate correction vector
diff --git a/src/finiteVolume/functionObjects/fvMeshFunctionObject/fvMeshFunctionObject.H b/src/finiteVolume/functionObjects/fvMeshFunctionObject/fvMeshFunctionObject.H
index 5310f83a83..93399753a0 100644
--- a/src/finiteVolume/functionObjects/fvMeshFunctionObject/fvMeshFunctionObject.H
+++ b/src/finiteVolume/functionObjects/fvMeshFunctionObject/fvMeshFunctionObject.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::functionObjects::fvMeshFunctionObject
 
 Description
-    Specialization of Foam::functionObject for an Foam::fvMesh, providing a
+    Specialisation of Foam::functionObject for an Foam::fvMesh, providing a
     reference to the Foam::fvMesh.
 
     If the selected region is not an Foam::fvMesh a Foam::FatalError will be
diff --git a/src/finiteVolume/fvMatrices/fvMatricesFwd.H b/src/finiteVolume/fvMatrices/fvMatricesFwd.H
index 83edf63a5d..86aa40cc95 100644
--- a/src/finiteVolume/fvMatrices/fvMatricesFwd.H
+++ b/src/finiteVolume/fvMatrices/fvMatricesFwd.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,7 +22,7 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Description
-    Forward declarations of fvMatrix specializations.
+    Forward declarations of fvMatrix specialisations.
 
 \*---------------------------------------------------------------------------*/
 
diff --git a/src/finiteVolume/interpolation/surfaceInterpolation/schemes/linearUpwind/linearUpwind.H b/src/finiteVolume/interpolation/surfaceInterpolation/schemes/linearUpwind/linearUpwind.H
index 18746676bb..a4aadcb9b8 100644
--- a/src/finiteVolume/interpolation/surfaceInterpolation/schemes/linearUpwind/linearUpwind.H
+++ b/src/finiteVolume/interpolation/surfaceInterpolation/schemes/linearUpwind/linearUpwind.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -130,7 +130,7 @@ public:
 };
 
 
-// Specialize for volVectorField to support cached gradients
+// Specialise for volVectorField to support cached gradients
 template<>
 tmp<surfaceVectorField> linearUpwind<vector>::correction
 (
diff --git a/src/functionObjects/field/fieldValues/volFieldValue/volFieldValue.H b/src/functionObjects/field/fieldValues/volFieldValue/volFieldValue.H
index 74cd2c76ab..b7c4688bbe 100644
--- a/src/functionObjects/field/fieldValues/volFieldValue/volFieldValue.H
+++ b/src/functionObjects/field/fieldValues/volFieldValue/volFieldValue.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::functionObjects::fieldValues::volFieldValue
 
 Description
-    Provides a 'volRegion' specialization of the fieldValue function object.
+    Provides a 'volRegion' specialisation of the fieldValue function object.
 
     Given a list of user-specified fields and a 'volRegion', a number of
     operations can be performed, such as sums, averages and integrations.
diff --git a/src/functionObjects/forces/forceCoeffs/forceCoeffs.C b/src/functionObjects/forces/forceCoeffs/forceCoeffs.C
index 2f5f67fc11..9f8002f574 100644
--- a/src/functionObjects/forces/forceCoeffs/forceCoeffs.C
+++ b/src/functionObjects/forces/forceCoeffs/forceCoeffs.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -156,7 +156,7 @@ bool Foam::functionObjects::forceCoeffs::read(const dictionary& dict)
     forces::read(dict);
 
     // Directions for lift and drag forces, and pitch moment
-    // Normalize to ensure that the directions are unit vectors
+    // Normalise to ensure that the directions are unit vectors
 
     dict.lookup("liftDir") >> liftDir_;
     liftDir_ /= mag(liftDir_);
diff --git a/src/fvModels/Make/files b/src/fvModels/Make/files
index c3b0484c70..c678ff51e2 100644
--- a/src/fvModels/Make/files
+++ b/src/fvModels/Make/files
@@ -22,7 +22,7 @@ derived/buoyancyEnergy/buoyancyEnergy.C
 derived/damping/damping/damping.C
 derived/damping/isotropicDamping/isotropicDamping.C
 derived/damping/verticalDamping/verticalDamping.C
-derived/phaseLimitStabilization/phaseLimitStabilization.C
+derived/phaseLimitStabilisation/phaseLimitStabilisation.C
 derived/accelerationSource/accelerationSource.C
 derived/volumeFractionSource/volumeFractionSource.C
 derived/solidEquilibriumEnergySource/solidEquilibriumEnergySource.C
diff --git a/src/fvModels/derived/phaseLimitStabilization/phaseLimitStabilization.C b/src/fvModels/derived/phaseLimitStabilisation/phaseLimitStabilisation.C
similarity index 86%
rename from src/fvModels/derived/phaseLimitStabilization/phaseLimitStabilization.C
rename to src/fvModels/derived/phaseLimitStabilisation/phaseLimitStabilisation.C
index 394c0e881e..8dd697ca7a 100644
--- a/src/fvModels/derived/phaseLimitStabilization/phaseLimitStabilization.C
+++ b/src/fvModels/derived/phaseLimitStabilisation/phaseLimitStabilisation.C
@@ -23,7 +23,7 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "phaseLimitStabilization.H"
+#include "phaseLimitStabilisation.H"
 #include "fvMatrices.H"
 #include "fvmSup.H"
 #include "uniformDimensionedFields.H"
@@ -35,12 +35,12 @@ namespace Foam
 {
 namespace fv
 {
-    defineTypeNameAndDebug(phaseLimitStabilization, 0);
+    defineTypeNameAndDebug(phaseLimitStabilisation, 0);
 
     addToRunTimeSelectionTable
     (
         fvModel,
-        phaseLimitStabilization,
+        phaseLimitStabilisation,
         dictionary
     );
 }
@@ -49,7 +49,7 @@ namespace fv
 
 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
-void Foam::fv::phaseLimitStabilization::readCoeffs()
+void Foam::fv::phaseLimitStabilisation::readCoeffs()
 {
     fieldName_ = coeffs().lookup<word>("field");
     rateName_ = coeffs().lookup<word>("rate");
@@ -58,7 +58,7 @@ void Foam::fv::phaseLimitStabilization::readCoeffs()
 
 
 template<class Type>
-void Foam::fv::phaseLimitStabilization::addSupType
+void Foam::fv::phaseLimitStabilisation::addSupType
 (
     const volScalarField& alpha,
     const volScalarField& rho,
@@ -77,7 +77,7 @@ void Foam::fv::phaseLimitStabilization::addSupType
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
-Foam::fv::phaseLimitStabilization::phaseLimitStabilization
+Foam::fv::phaseLimitStabilisation::phaseLimitStabilisation
 (
     const word& name,
     const word& modelType,
@@ -96,7 +96,7 @@ Foam::fv::phaseLimitStabilization::phaseLimitStabilization
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
-Foam::wordList Foam::fv::phaseLimitStabilization::addSupFields() const
+Foam::wordList Foam::fv::phaseLimitStabilisation::addSupFields() const
 {
     return wordList(1, fieldName_);
 }
@@ -105,11 +105,11 @@ Foam::wordList Foam::fv::phaseLimitStabilization::addSupFields() const
 FOR_ALL_FIELD_TYPES
 (
     IMPLEMENT_FV_MODEL_ADD_ALPHA_RHO_SUP,
-    fv::phaseLimitStabilization
+    fv::phaseLimitStabilisation
 );
 
 
-bool Foam::fv::phaseLimitStabilization::read(const dictionary& dict)
+bool Foam::fv::phaseLimitStabilisation::read(const dictionary& dict)
 {
     if (fvModel::read(dict))
     {
diff --git a/src/fvModels/derived/phaseLimitStabilization/phaseLimitStabilization.H b/src/fvModels/derived/phaseLimitStabilisation/phaseLimitStabilisation.H
similarity index 84%
rename from src/fvModels/derived/phaseLimitStabilization/phaseLimitStabilization.H
rename to src/fvModels/derived/phaseLimitStabilisation/phaseLimitStabilisation.H
index ee387ce9b7..37f7719c47 100644
--- a/src/fvModels/derived/phaseLimitStabilization/phaseLimitStabilization.H
+++ b/src/fvModels/derived/phaseLimitStabilisation/phaseLimitStabilisation.H
@@ -22,26 +22,26 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::fv::phaseLimitStabilization
+    Foam::fv::phaseLimitStabilisation
 
 Description
-    Stabilization source for phase transport equations
+    Stabilisation source for phase transport equations
 
     Applies an implicit source to the phase transport equation for the specified
     \c field when the phase volume fraction is below \c residualAlpha.  The
-    stabilization rate is provided by the registered
+    stabilisation rate is provided by the registered
     uniformDimensionedScalarField \c rate, which could be extended to also
     support volScalarField and volScalarField::Internal field types.  The \c
-    field is currently stabilized towards zero in the limit of the phase volume
+    field is currently stabilised towards zero in the limit of the phase volume
     fraction approaching zero but this could be extended to support a
     specified value or a value or field looked-up from the database.
 
 Usage
     Example usage:
     \verbatim
-    stabilization
+    stabilisation
     {
-        type            phaseLimitStabilization;
+        type            phaseLimitStabilisation;
 
         field           sigma.liquid;
 
@@ -51,12 +51,12 @@ Usage
     \endverbatim
 
 SourceFiles
-    phaseLimitStabilization.C
+    phaseLimitStabilisation.C
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef phaseLimitStabilization_H
-#define phaseLimitStabilization_H
+#ifndef phaseLimitStabilisation_H
+#define phaseLimitStabilisation_H
 
 #include "fvModel.H"
 
@@ -68,10 +68,10 @@ namespace fv
 {
 
 /*---------------------------------------------------------------------------*\
-                   Class phaseLimitStabilization Declaration
+                   Class phaseLimitStabilisation Declaration
 \*---------------------------------------------------------------------------*/
 
-class phaseLimitStabilization
+class phaseLimitStabilisation
 :
     public fvModel
 {
@@ -83,7 +83,7 @@ class phaseLimitStabilization
         //- Rate field name
         word rateName_;
 
-        //- Residual alpha value below which stabilization is applied
+        //- Residual alpha value below which stabilisation is applied
         scalar residualAlpha_;
 
 
@@ -106,13 +106,13 @@ class phaseLimitStabilization
 public:
 
     //- Runtime type information
-    TypeName("phaseLimitStabilization");
+    TypeName("phaseLimitStabilisation");
 
 
     // Constructors
 
         //- Construct from components
-        phaseLimitStabilization
+        phaseLimitStabilisation
         (
             const word& name,
             const word& modelType,
@@ -121,11 +121,11 @@ public:
         );
 
         //- Disallow default bitwise copy construction
-        phaseLimitStabilization(const phaseLimitStabilization&) = delete;
+        phaseLimitStabilisation(const phaseLimitStabilisation&) = delete;
 
 
     //- Destructor
-    virtual ~phaseLimitStabilization()
+    virtual ~phaseLimitStabilisation()
     {}
 
 
@@ -151,7 +151,7 @@ public:
     // Member Operators
 
         //- Disallow default bitwise assignment
-        void operator=(const phaseLimitStabilization&) = delete;
+        void operator=(const phaseLimitStabilisation&) = delete;
 };
 
 
diff --git a/src/lagrangian/basic/particle/particle.C b/src/lagrangian/basic/particle/particle.C
index 4f70a74294..0d0a39364e 100644
--- a/src/lagrangian/basic/particle/particle.C
+++ b/src/lagrangian/basic/particle/particle.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -1131,7 +1131,7 @@ void Foam::particle::correctAfterInteractionListReferral(const label celli)
     // in this tet. It will, however, generate the correct vector when the
     // position method is called. A referred particle should never be tracked,
     // so this approximate topology is good enough. By using the nearby cell we
-    // minimize the error associated with the incorrect topology.
+    // minimise the error associated with the incorrect topology.
     coordinates_ = barycentric(1, 0, 0, 0);
     if (mesh_.moving() && stepFraction_ != 1)
     {
diff --git a/src/lagrangian/distributionModels/general/general.C b/src/lagrangian/distributionModels/general/general.C
index 22077486eb..febe85ea8b 100644
--- a/src/lagrangian/distributionModels/general/general.C
+++ b/src/lagrangian/distributionModels/general/general.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -121,7 +121,7 @@ Foam::distributionModels::general::general
         }
     }
 
-    // normalize the distribution
+    // normalise the distribution
     scalar sumArea = integral_.last();
 
     for (label i=0; i<nEntries_; i++)
diff --git a/src/lagrangian/distributionModels/general/general.H b/src/lagrangian/distributionModels/general/general.H
index 05c2882bd9..4c3019d339 100644
--- a/src/lagrangian/distributionModels/general/general.H
+++ b/src/lagrangian/distributionModels/general/general.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -31,7 +31,7 @@ Description
     cumulative distribution function. In both cases it is assumed that the
     function is linear between the specified points.
 
-    In both modes of operation the values are automatically normalized.
+    In both modes of operation the values are automatically normalised.
 
 SourceFiles
     general.C
diff --git a/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloud.C b/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloud.C
index dc6a446610..61df7722e4 100644
--- a/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloud.C
+++ b/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloud.C
@@ -24,7 +24,7 @@ License
 \*---------------------------------------------------------------------------*/
 
 #include "SprayCloud.H"
-#include "AtomizationModel.H"
+#include "AtomisationModel.H"
 #include "BreakupModel.H"
 #include "parcelThermo.H"
 
@@ -33,9 +33,9 @@ License
 template<class CloudType>
 void Foam::SprayCloud<CloudType>::setModels()
 {
-    atomizationModel_.reset
+    atomisationModel_.reset
     (
-        AtomizationModel<SprayCloud<CloudType>>::New
+        AtomisationModel<SprayCloud<CloudType>>::New
         (
             this->subModelProperties(),
             *this
@@ -61,7 +61,7 @@ void Foam::SprayCloud<CloudType>::cloudReset
 {
     CloudType::cloudReset(c);
 
-    atomizationModel_.reset(c.atomizationModel_.ptr());
+    atomisationModel_.reset(c.atomisationModel_.ptr());
     breakupModel_.reset(c.breakupModel_.ptr());
 }
 
@@ -82,7 +82,7 @@ Foam::SprayCloud<CloudType>::SprayCloud
     CloudType(cloudName, rho, U, g, carrierThermo, false),
     cloudCopyPtr_(nullptr),
     averageParcelMass_(0.0),
-    atomizationModel_(nullptr),
+    atomisationModel_(nullptr),
     breakupModel_(nullptr)
 {
     setModels();
@@ -114,7 +114,7 @@ Foam::SprayCloud<CloudType>::SprayCloud
     CloudType(c, name),
     cloudCopyPtr_(nullptr),
     averageParcelMass_(c.averageParcelMass_),
-    atomizationModel_(c.atomizationModel_->clone()),
+    atomisationModel_(c.atomisationModel_->clone()),
     breakupModel_(c.breakupModel_->clone())
 {}
 
@@ -130,7 +130,7 @@ Foam::SprayCloud<CloudType>::SprayCloud
     CloudType(mesh, name, c),
     cloudCopyPtr_(nullptr),
     averageParcelMass_(0.0),
-    atomizationModel_(nullptr),
+    atomisationModel_(nullptr),
     breakupModel_(nullptr)
 {}
 
@@ -184,7 +184,7 @@ void Foam::SprayCloud<CloudType>::checkParcelProperties
     parcel.y() = breakup().y0();
     parcel.yDot() = breakup().yDot0();
 
-    parcel.liquidCore() = atomization().initLiquidCore();
+    parcel.liquidCore() = atomisation().initLiquidCore();
 }
 
 
diff --git a/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloud.H b/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloud.H
index a35ea319f8..1fa0ad7493 100644
--- a/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloud.H
+++ b/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloud.H
@@ -28,7 +28,7 @@ Description
     Templated base class for spray cloud
 
     - sub-models:
-      - atomization model
+      - atomisation model
       - break-up model
 
 \*---------------------------------------------------------------------------*/
@@ -50,7 +50,7 @@ namespace Foam
 
 // Forward declaration of classes
 template<class CloudType>
-class AtomizationModel;
+class AtomisationModel;
 
 template<class CloudType>
 class BreakupModel;
@@ -103,9 +103,9 @@ protected:
 
         // References to the cloud sub-models
 
-            //- Atomization model
-            autoPtr<AtomizationModel<SprayCloud<CloudType>>>
-                atomizationModel_;
+            //- Atomisation model
+            autoPtr<AtomisationModel<SprayCloud<CloudType>>>
+                atomisationModel_;
 
             //- Break-up model
             autoPtr<BreakupModel<SprayCloud<CloudType>>> breakupModel_;
@@ -196,12 +196,12 @@ public:
 
             // Sub-models
 
-                //- Return const-access to the atomization model
-                inline const AtomizationModel<SprayCloud<CloudType>>&
-                    atomization() const;
+                //- Return const-access to the atomisation model
+                inline const AtomisationModel<SprayCloud<CloudType>>&
+                    atomisation() const;
 
-                //- Return reference to the atomization model
-                inline AtomizationModel<SprayCloud<CloudType>>& atomization();
+                //- Return reference to the atomisation model
+                inline AtomisationModel<SprayCloud<CloudType>>& atomisation();
 
                 //- Return const-access to the breakup model
                 inline const BreakupModel<SprayCloud<CloudType>>&
diff --git a/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloudI.H b/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloudI.H
index f122543263..7704fcc0dd 100644
--- a/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloudI.H
+++ b/src/lagrangian/parcel/clouds/Templates/SprayCloud/SprayCloudI.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -36,18 +36,18 @@ Foam::SprayCloud<CloudType>::cloudCopy() const
 
 
 template<class CloudType>
-inline const Foam::AtomizationModel<Foam::SprayCloud<CloudType>>&
-Foam::SprayCloud<CloudType>::atomization() const
+inline const Foam::AtomisationModel<Foam::SprayCloud<CloudType>>&
+Foam::SprayCloud<CloudType>::atomisation() const
 {
-    return atomizationModel_;
+    return atomisationModel_;
 }
 
 
 template<class CloudType>
-inline Foam::AtomizationModel<Foam::SprayCloud<CloudType>>&
-Foam::SprayCloud<CloudType>::atomization()
+inline Foam::AtomisationModel<Foam::SprayCloud<CloudType>>&
+Foam::SprayCloud<CloudType>::atomisation()
 {
-    return atomizationModel_();
+    return atomisationModel_();
 }
 
 
diff --git a/src/lagrangian/parcel/parcels/Templates/SprayParcel/SprayParcel.C b/src/lagrangian/parcel/parcels/Templates/SprayParcel/SprayParcel.C
index 7889809713..74f5bbf5d0 100644
--- a/src/lagrangian/parcel/parcels/Templates/SprayParcel/SprayParcel.C
+++ b/src/lagrangian/parcel/parcels/Templates/SprayParcel/SprayParcel.C
@@ -26,7 +26,7 @@ License
 #include "SprayParcel.H"
 #include "forceSuSp.H"
 #include "CompositionModel.H"
-#include "AtomizationModel.H"
+#include "AtomisationModel.H"
 
 // * * * * * * * * * * *  Protected Member Functions * * * * * * * * * * * * //
 
@@ -126,7 +126,7 @@ void Foam::SprayParcel<ParcelType>::calc
 
         if (liquidCore() > 0.5)
         {
-            calcAtomization(cloud, td, dt);
+            calcAtomisation(cloud, td, dt);
 
             // Preserve the total mass/volume by increasing the number of
             // particles in parcels due to breakup
@@ -146,7 +146,7 @@ void Foam::SprayParcel<ParcelType>::calc
 
 template<class ParcelType>
 template<class TrackCloudType>
-void Foam::SprayParcel<ParcelType>::calcAtomization
+void Foam::SprayParcel<ParcelType>::calcAtomisation
 (
     TrackCloudType& cloud,
     trackingData& td,
@@ -158,13 +158,13 @@ void Foam::SprayParcel<ParcelType>::calcAtomization
         cloud.composition();
 
     typedef typename TrackCloudType::sprayCloudType sprayCloudType;
-    const AtomizationModel<sprayCloudType>& atomization =
-        cloud.atomization();
+    const AtomisationModel<sprayCloudType>& atomisation =
+        cloud.atomisation();
 
     // Average molecular weight of carrier mix - assumes perfect gas
     scalar Wc = td.rhoc()*RR*td.Tc()/td.pc();
     scalar R = RR/Wc;
-    scalar Tav = atomization.Taverage(this->T(), td.Tc());
+    scalar Tav = atomisation.Taverage(this->T(), td.Tc());
 
     // Calculate average gas density based on average temperature
     scalar rhoAv = td.pc()/(R*Tav);
@@ -185,12 +185,12 @@ void Foam::SprayParcel<ParcelType>::calcAtomization
     scalar volFlowRate = cloud.injectors().volumeToInject(t0, t1)/dt;
 
     scalar chi = 0.0;
-    if (atomization.calcChi())
+    if (atomisation.calcChi())
     {
         chi = this->chi(cloud, td, composition.liquids().X(this->Y()));
     }
 
-    atomization.update
+    atomisation.update
     (
         dt,
         this->d(),
@@ -235,7 +235,7 @@ void Foam::SprayParcel<ParcelType>::calcBreakup
     // Average molecular weight of carrier mix - assumes perfect gas
     scalar Wc = td.rhoc()*RR*td.Tc()/td.pc();
     scalar R = RR/Wc;
-    scalar Tav = cloud.atomization().Taverage(this->T(), td.Tc());
+    scalar Tav = cloud.atomisation().Taverage(this->T(), td.Tc());
 
     // Calculate average gas density based on average temperature
     scalar rhoAv = td.pc()/(R*Tav);
diff --git a/src/lagrangian/parcel/parcels/Templates/SprayParcel/SprayParcel.H b/src/lagrangian/parcel/parcels/Templates/SprayParcel/SprayParcel.H
index c74a1dfc2c..8b9b2cba1a 100644
--- a/src/lagrangian/parcel/parcels/Templates/SprayParcel/SprayParcel.H
+++ b/src/lagrangian/parcel/parcels/Templates/SprayParcel/SprayParcel.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::SprayParcel
 
 Description
-    Reaching spray parcel, with added functionality for atomization and breakup
+    Reaching spray parcel, with added functionality for atomisation and breakup
 
 \*---------------------------------------------------------------------------*/
 
@@ -170,7 +170,7 @@ protected:
             //- Rate of change of spherical deviation
             scalar yDot_;
 
-            //- Characteristic time (used in atomization and/or breakup model)
+            //- Characteristic time (used in atomisation and/or breakup model)
             scalar tc_;
 
             //- Stripped parcel mass due to breakup
@@ -295,7 +295,7 @@ public:
             //- Return const access to rate of change of spherical deviation
             inline scalar yDot() const;
 
-            //- Return const access to atomization characteristic time
+            //- Return const access to atomisation characteristic time
             inline scalar tc() const;
 
             //- Return const access to stripped parcel mass
@@ -337,7 +337,7 @@ public:
             //- Return access to rate of change of spherical deviation
             inline scalar& yDot();
 
-            //- Return access to atomization characteristic time
+            //- Return access to atomisation characteristic time
             inline scalar& tc();
 
             //- Return access to stripped parcel mass
@@ -359,9 +359,9 @@ public:
             template<class TrackCloudType>
             void setCellValues(TrackCloudType& cloud, trackingData& td);
 
-            //- Correct parcel properties according to atomization model
+            //- Correct parcel properties according to atomisation model
             template<class TrackCloudType>
-            void calcAtomization
+            void calcAtomisation
             (
                 TrackCloudType& cloud,
                 trackingData& td,
@@ -410,7 +410,7 @@ public:
             );
 
             //- Calculate the chi-factor for flash-boiling for the
-            //  atomization model
+            //  atomisation model
             template<class TrackCloudType>
             scalar chi
             (
diff --git a/src/lagrangian/parcel/parcels/derived/sprayParcel/makeSprayParcelSubmodels.C b/src/lagrangian/parcel/parcels/derived/sprayParcel/makeSprayParcelSubmodels.C
index 58e5fac362..cbaa0852d1 100644
--- a/src/lagrangian/parcel/parcels/derived/sprayParcel/makeSprayParcelSubmodels.C
+++ b/src/lagrangian/parcel/parcels/derived/sprayParcel/makeSprayParcelSubmodels.C
@@ -44,7 +44,7 @@ License
 
 // Spray
 #include "DistortedSphereDragForce.H"
-#include "makeSprayParcelAtomizationModels.H"
+#include "makeSprayParcelAtomisationModels.H"
 #include "makeSprayParcelBreakupModels.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@@ -68,7 +68,7 @@ makeReactingParcelSurfaceFilmModels(sprayCloud);
 
 // Spray sub-models
 makeParticleForceModelType(DistortedSphereDragForce, sprayCloud);
-makeSprayParcelAtomizationModels(sprayCloud);
+makeSprayParcelAtomisationModels(sprayCloud);
 makeSprayParcelBreakupModels(sprayCloud);
 
 
diff --git a/src/lagrangian/parcel/parcels/include/makeSprayParcelAtomizationModels.H b/src/lagrangian/parcel/parcels/include/makeSprayParcelAtomisationModels.H
similarity index 74%
rename from src/lagrangian/parcel/parcels/include/makeSprayParcelAtomizationModels.H
rename to src/lagrangian/parcel/parcels/include/makeSprayParcelAtomisationModels.H
index d2e9e81fe3..f05dff27cc 100644
--- a/src/lagrangian/parcel/parcels/include/makeSprayParcelAtomizationModels.H
+++ b/src/lagrangian/parcel/parcels/include/makeSprayParcelAtomisationModels.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,23 +23,23 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef makeSprayParcelAtomizationModels_H
-#define makeSprayParcelAtomizationModels_H
+#ifndef makeSprayParcelAtomisationModels_H
+#define makeSprayParcelAtomisationModels_H
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-#include "NoAtomization.H"
-#include "BlobsSheetAtomization.H"
-#include "LISAAtomization.H"
+#include "NoAtomisation.H"
+#include "BlobsSheetAtomisation.H"
+#include "LISAAtomisation.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-#define makeSprayParcelAtomizationModels(CloudType)                            \
+#define makeSprayParcelAtomisationModels(CloudType)                            \
                                                                                \
-    makeAtomizationModel(CloudType);                                           \
-    makeAtomizationModelType(NoAtomization, CloudType);                        \
-    makeAtomizationModelType(BlobsSheetAtomization, CloudType);                \
-    makeAtomizationModelType(LISAAtomization, CloudType);
+    makeAtomisationModel(CloudType);                                           \
+    makeAtomisationModelType(NoAtomisation, CloudType);                        \
+    makeAtomisationModelType(BlobsSheetAtomisation, CloudType);                \
+    makeAtomisationModelType(LISAAtomisation, CloudType);
 
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
diff --git a/src/lagrangian/parcel/submodels/MPPIC/ParticleStressModels/HarrisCrighton/HarrisCrighton.H b/src/lagrangian/parcel/submodels/MPPIC/ParticleStressModels/HarrisCrighton/HarrisCrighton.H
index 1b3c3a7751..34b04de1aa 100644
--- a/src/lagrangian/parcel/submodels/MPPIC/ParticleStressModels/HarrisCrighton/HarrisCrighton.H
+++ b/src/lagrangian/parcel/submodels/MPPIC/ParticleStressModels/HarrisCrighton/HarrisCrighton.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -38,7 +38,7 @@ Description
 
     Reference:
     \verbatim
-        "Solitons, solitary waves, and voidage disturbances in gas-fluidized
+        "Solitons, solitary waves, and voidage disturbances in gas-fluidised
         beds"
         S Harris and D Crighton,
         Journal of Fluid Mechanics
diff --git a/src/lagrangian/parcel/submodels/MPPIC/TimeScaleModels/equilibrium/equilibrium.H b/src/lagrangian/parcel/submodels/MPPIC/TimeScaleModels/equilibrium/equilibrium.H
index 6c02ce136f..e8554629c6 100644
--- a/src/lagrangian/parcel/submodels/MPPIC/TimeScaleModels/equilibrium/equilibrium.H
+++ b/src/lagrangian/parcel/submodels/MPPIC/TimeScaleModels/equilibrium/equilibrium.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -30,7 +30,7 @@ Description
 
     Reference:
     \verbatim
-        "A model for collisional exchange in gas/liquid/solid fluidized beds"
+        "A model for collisional exchange in gas/liquid/solid fluidised beds"
         P O'Rourke, P Zhao and D Snider
         Chemical Engineering Science
         Volume 64, Issue 8, Pages 1784-1797, April 2009
diff --git a/src/lagrangian/parcel/submodels/Momentum/ParticleForces/Drag/ErgunWenYuDrag/ErgunWenYuDragForce.H b/src/lagrangian/parcel/submodels/Momentum/ParticleForces/Drag/ErgunWenYuDrag/ErgunWenYuDragForce.H
index 3e91e669de..6488d90ee5 100644
--- a/src/lagrangian/parcel/submodels/Momentum/ParticleForces/Drag/ErgunWenYuDrag/ErgunWenYuDragForce.H
+++ b/src/lagrangian/parcel/submodels/Momentum/ParticleForces/Drag/ErgunWenYuDrag/ErgunWenYuDragForce.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -30,7 +30,7 @@ Description
     Reference:
     \verbatim
         Gidaspow, D. (1994).
-        Multiphase flow and fluidization: continuum and kinetic theory
+        Multiphase flow and fluidisation: continuum and kinetic theory
         descriptions.
         Academic press.
     \endverbatim
diff --git a/src/lagrangian/parcel/submodels/Momentum/ParticleForces/Drag/WenYuDrag/WenYuDragForce.H b/src/lagrangian/parcel/submodels/Momentum/ParticleForces/Drag/WenYuDrag/WenYuDragForce.H
index 3856d1d299..beec346a1e 100644
--- a/src/lagrangian/parcel/submodels/Momentum/ParticleForces/Drag/WenYuDrag/WenYuDragForce.H
+++ b/src/lagrangian/parcel/submodels/Momentum/ParticleForces/Drag/WenYuDrag/WenYuDragForce.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2013-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2013-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -30,7 +30,7 @@ Description
     Reference:
     \verbatim
         Gidaspow, D. (1994).
-        Multiphase flow and fluidization: continuum and kinetic theory
+        Multiphase flow and fluidisation: continuum and kinetic theory
         descriptions.
         Academic press.
     \endverbatim
diff --git a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/AtomizationModel/AtomizationModel.C b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/AtomisationModel/AtomisationModel.C
similarity index 82%
rename from src/lagrangian/parcel/submodels/Spray/AtomizationModel/AtomizationModel/AtomizationModel.C
rename to src/lagrangian/parcel/submodels/Spray/AtomisationModel/AtomisationModel/AtomisationModel.C
index 7aabd028df..843001dd73 100644
--- a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/AtomizationModel/AtomizationModel.C
+++ b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/AtomisationModel/AtomisationModel.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,12 +23,12 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "AtomizationModel.H"
+#include "AtomisationModel.H"
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::AtomizationModel<CloudType>::AtomizationModel
+Foam::AtomisationModel<CloudType>::AtomisationModel
 (
     CloudType& owner
 )
@@ -38,9 +38,9 @@ Foam::AtomizationModel<CloudType>::AtomizationModel
 
 
 template<class CloudType>
-Foam::AtomizationModel<CloudType>::AtomizationModel
+Foam::AtomisationModel<CloudType>::AtomisationModel
 (
-    const AtomizationModel<CloudType>& am
+    const AtomisationModel<CloudType>& am
 )
 :
     CloudSubModelBase<CloudType>(am)
@@ -48,7 +48,7 @@ Foam::AtomizationModel<CloudType>::AtomizationModel
 
 
 template<class CloudType>
-Foam::AtomizationModel<CloudType>::AtomizationModel
+Foam::AtomisationModel<CloudType>::AtomisationModel
 (
     const dictionary& dict,
     CloudType& owner,
@@ -62,14 +62,14 @@ Foam::AtomizationModel<CloudType>::AtomizationModel
 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::AtomizationModel<CloudType>::~AtomizationModel()
+Foam::AtomisationModel<CloudType>::~AtomisationModel()
 {}
 
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::scalar Foam::AtomizationModel<CloudType>::Taverage
+Foam::scalar Foam::AtomisationModel<CloudType>::Taverage
 (
     const scalar& Tl,
     const scalar& Tc
@@ -81,6 +81,6 @@ Foam::scalar Foam::AtomizationModel<CloudType>::Taverage
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-#include "AtomizationModelNew.C"
+#include "AtomisationModelNew.C"
 
 // ************************************************************************* //
diff --git a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/AtomizationModel/AtomizationModel.H b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/AtomisationModel/AtomisationModel.H
similarity index 83%
rename from src/lagrangian/parcel/submodels/Spray/AtomizationModel/AtomizationModel/AtomizationModel.H
rename to src/lagrangian/parcel/submodels/Spray/AtomisationModel/AtomisationModel/AtomisationModel.H
index c115c791c0..29d3bb1299 100644
--- a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/AtomizationModel/AtomizationModel.H
+++ b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/AtomisationModel/AtomisationModel.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,19 +22,19 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::AtomizationModel
+    Foam::AtomisationModel
 
 Description
-    Templated atomization model class
+    Templated atomisation model class
 
 SourceFiles
-    AtomizationModel.C
-    AtomizationModelNew.C
+    AtomisationModel.C
+    AtomisationModelNew.C
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef AtomizationModel_H
-#define AtomizationModel_H
+#ifndef AtomisationModel_H
+#define AtomisationModel_H
 
 #include "IOdictionary.H"
 #include "autoPtr.H"
@@ -47,24 +47,24 @@ namespace Foam
 {
 
 /*---------------------------------------------------------------------------*\
-                      Class AtomizationModel Declaration
+                      Class AtomisationModel Declaration
 \*---------------------------------------------------------------------------*/
 
 template<class CloudType>
-class AtomizationModel
+class AtomisationModel
 :
     public CloudSubModelBase<CloudType>
 {
 public:
 
     //- Runtime type information
-    TypeName("atomizationModel");
+    TypeName("atomisationModel");
 
     //- Declare runtime constructor selection table
     declareRunTimeSelectionTable
     (
         autoPtr,
-        AtomizationModel,
+        AtomisationModel,
         dictionary,
         (
             const dictionary& dict,
@@ -77,10 +77,10 @@ public:
     // Constructors
 
         //- Construct null from owner
-        AtomizationModel(CloudType& owner);
+        AtomisationModel(CloudType& owner);
 
         //- Construct from dictionary
-        AtomizationModel
+        AtomisationModel
         (
             const dictionary& dict,
             CloudType& owner,
@@ -88,18 +88,18 @@ public:
         );
 
         //- Construct copy
-        AtomizationModel(const AtomizationModel<CloudType>& am);
+        AtomisationModel(const AtomisationModel<CloudType>& am);
 
         //- Construct and return a clone
-        virtual autoPtr<AtomizationModel<CloudType>> clone() const = 0;
+        virtual autoPtr<AtomisationModel<CloudType>> clone() const = 0;
 
 
     //- Destructor
-    virtual ~AtomizationModel();
+    virtual ~AtomisationModel();
 
 
     //- Selector
-    static autoPtr<AtomizationModel<CloudType>> New
+    static autoPtr<AtomisationModel<CloudType>> New
     (
         const dictionary& dict,
         CloudType& owner
@@ -144,12 +144,12 @@ public:
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-#define makeAtomizationModel(CloudType)                                        \
+#define makeAtomisationModel(CloudType)                                        \
                                                                                \
     typedef Foam::CloudType::sprayCloudType sprayCloudType;                    \
     defineNamedTemplateTypeNameAndDebug                                        \
     (                                                                          \
-        Foam::AtomizationModel<sprayCloudType>,                                \
+        Foam::AtomisationModel<sprayCloudType>,                                \
         0                                                                      \
     );                                                                         \
                                                                                \
@@ -157,18 +157,18 @@ public:
     {                                                                          \
         defineTemplateRunTimeSelectionTable                                    \
         (                                                                      \
-            AtomizationModel<sprayCloudType>,                                  \
+            AtomisationModel<sprayCloudType>,                                  \
             dictionary                                                         \
         );                                                                     \
     }
 
 
-#define makeAtomizationModelType(SS, CloudType)                                \
+#define makeAtomisationModelType(SS, CloudType)                                \
                                                                                \
     typedef Foam::CloudType::sprayCloudType sprayCloudType;                    \
     defineNamedTemplateTypeNameAndDebug(Foam::SS<sprayCloudType>, 0);          \
                                                                                \
-    Foam::AtomizationModel<sprayCloudType>::                                   \
+    Foam::AtomisationModel<sprayCloudType>::                                   \
         adddictionaryConstructorToTable<Foam::SS<sprayCloudType>>              \
             add##SS##CloudType##sprayCloudType##ConstructorToTable_;
 
@@ -176,7 +176,7 @@ public:
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 #ifdef NoRepository
-    #include "AtomizationModel.C"
+    #include "AtomisationModel.C"
 #endif
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
diff --git a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/AtomizationModel/AtomizationModelNew.C b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/AtomisationModel/AtomisationModelNew.C
similarity index 74%
rename from src/lagrangian/parcel/submodels/Spray/AtomizationModel/AtomizationModel/AtomizationModelNew.C
rename to src/lagrangian/parcel/submodels/Spray/AtomisationModel/AtomisationModel/AtomisationModelNew.C
index 8834272b1d..aee6c754e4 100644
--- a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/AtomizationModel/AtomizationModelNew.C
+++ b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/AtomisationModel/AtomisationModelNew.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,36 +23,36 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "AtomizationModel.H"
+#include "AtomisationModel.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::autoPtr<Foam::AtomizationModel<CloudType>>
-Foam::AtomizationModel<CloudType>::New
+Foam::autoPtr<Foam::AtomisationModel<CloudType>>
+Foam::AtomisationModel<CloudType>::New
 (
     const dictionary& dict,
     CloudType& owner
 )
 {
-    word AtomizationModelType(dict.lookup("atomizationModel"));
+    word AtomisationModelType(dict.lookup("atomisationModel"));
 
-    Info<< "Selecting AtomizationModel " << AtomizationModelType << endl;
+    Info<< "Selecting AtomisationModel " << AtomisationModelType << endl;
 
     typename dictionaryConstructorTable::iterator cstrIter =
-        dictionaryConstructorTablePtr_->find(AtomizationModelType);
+        dictionaryConstructorTablePtr_->find(AtomisationModelType);
 
     if (cstrIter == dictionaryConstructorTablePtr_->end())
     {
         FatalErrorInFunction
-            << "Unknown AtomizationModelType type "
-            << AtomizationModelType
+            << "Unknown AtomisationModelType type "
+            << AtomisationModelType
             << ", constructor not in hash table" << nl << nl
-            << "    Valid AtomizationModel types are:" << nl
+            << "    Valid AtomisationModel types are:" << nl
             << dictionaryConstructorTablePtr_->sortedToc() << exit(FatalError);
     }
 
-    return autoPtr<AtomizationModel<CloudType>>(cstrIter()(dict, owner));
+    return autoPtr<AtomisationModel<CloudType>>(cstrIter()(dict, owner));
 }
 
 
diff --git a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/BlobsSheetAtomization/BlobsSheetAtomization.C b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/BlobsSheetAtomisation/BlobsSheetAtomisation.C
similarity index 80%
rename from src/lagrangian/parcel/submodels/Spray/AtomizationModel/BlobsSheetAtomization/BlobsSheetAtomization.C
rename to src/lagrangian/parcel/submodels/Spray/AtomisationModel/BlobsSheetAtomisation/BlobsSheetAtomisation.C
index ac8fe89011..815bd9008f 100644
--- a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/BlobsSheetAtomization/BlobsSheetAtomization.C
+++ b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/BlobsSheetAtomisation/BlobsSheetAtomisation.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,30 +23,30 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "BlobsSheetAtomization.H"
+#include "BlobsSheetAtomisation.H"
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::BlobsSheetAtomization<CloudType>::BlobsSheetAtomization
+Foam::BlobsSheetAtomisation<CloudType>::BlobsSheetAtomisation
 (
     const dictionary& dict,
     CloudType& owner
 )
 :
-    AtomizationModel<CloudType>(dict, owner, typeName),
+    AtomisationModel<CloudType>(dict, owner, typeName),
     B_(this->coeffDict().template lookup<scalar>("B")),
     angle_(this->coeffDict().template lookup<scalar>("angle"))
 {}
 
 
 template<class CloudType>
-Foam::BlobsSheetAtomization<CloudType>::BlobsSheetAtomization
+Foam::BlobsSheetAtomisation<CloudType>::BlobsSheetAtomisation
 (
-    const BlobsSheetAtomization<CloudType>& am
+    const BlobsSheetAtomisation<CloudType>& am
 )
 :
-    AtomizationModel<CloudType>(am),
+    AtomisationModel<CloudType>(am),
     B_(am.B_),
     angle_(am.angle_)
 {}
@@ -55,28 +55,28 @@ Foam::BlobsSheetAtomization<CloudType>::BlobsSheetAtomization
 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::BlobsSheetAtomization<CloudType>::~BlobsSheetAtomization()
+Foam::BlobsSheetAtomisation<CloudType>::~BlobsSheetAtomisation()
 {}
 
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::scalar Foam::BlobsSheetAtomization<CloudType>::initLiquidCore() const
+Foam::scalar Foam::BlobsSheetAtomisation<CloudType>::initLiquidCore() const
 {
     return 1.0;
 }
 
 
 template<class CloudType>
-bool Foam::BlobsSheetAtomization<CloudType>::calcChi() const
+bool Foam::BlobsSheetAtomisation<CloudType>::calcChi() const
 {
     return false;
 }
 
 
 template<class CloudType>
-void Foam::BlobsSheetAtomization<CloudType>::update
+void Foam::BlobsSheetAtomisation<CloudType>::update
 (
     const scalar dt,
     scalar& d,
diff --git a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/BlobsSheetAtomization/BlobsSheetAtomization.H b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/BlobsSheetAtomisation/BlobsSheetAtomisation.H
similarity index 77%
rename from src/lagrangian/parcel/submodels/Spray/AtomizationModel/BlobsSheetAtomization/BlobsSheetAtomization.H
rename to src/lagrangian/parcel/submodels/Spray/AtomisationModel/BlobsSheetAtomisation/BlobsSheetAtomisation.H
index 7c166554f0..6db928f4d0 100644
--- a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/BlobsSheetAtomization/BlobsSheetAtomization.H
+++ b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/BlobsSheetAtomisation/BlobsSheetAtomisation.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,16 +22,16 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::BlobsSheetAtomization
+    Foam::BlobsSheetAtomisation
 
 Description
-    Primary Breakup Model for pressure swirl atomizers.
+    Primary Breakup Model for pressure swirl atomisers.
 
     Accurate description in
     @verbatim
     Z. Han, S. Parrish, P.V. Farrell, R.D. Reitz
-    "Modeling Atomization Processes Of Pressure Swirl Hollow-Cone Fuel Sprays"
-    Atomization and Sprays, vol. 7, pp. 663-684, 1997
+    "Modeling Atomisation Processes Of Pressure Swirl Hollow-Cone Fuel Sprays"
+    Atomisation and Sprays, vol. 7, pp. 663-684, 1997
 
     and
 
@@ -43,23 +43,23 @@ Description
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef BlobsSheetAtomization_H
-#define BlobsSheetAtomization_H
+#ifndef BlobsSheetAtomisation_H
+#define BlobsSheetAtomisation_H
 
-#include "AtomizationModel.H"
+#include "AtomisationModel.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
 /*---------------------------------------------------------------------------*\
-                    Class BlobsSheetAtomization Declaration
+                    Class BlobsSheetAtomisation Declaration
 \*---------------------------------------------------------------------------*/
 
 template<class CloudType>
-class BlobsSheetAtomization
+class BlobsSheetAtomisation
 :
-    public AtomizationModel<CloudType>
+    public AtomisationModel<CloudType>
 {
     scalar B_;
     scalar angle_;
@@ -68,29 +68,29 @@ class BlobsSheetAtomization
 public:
 
     //- Runtime type information
-    TypeName("blobsSheetAtomization");
+    TypeName("blobsSheetAtomisation");
 
 
     // Constructors
 
         //- Construct from dictionary
-        BlobsSheetAtomization(const dictionary& dict, CloudType& cloud);
+        BlobsSheetAtomisation(const dictionary& dict, CloudType& cloud);
 
         //- Construct copy
-        BlobsSheetAtomization(const BlobsSheetAtomization<CloudType>& am);
+        BlobsSheetAtomisation(const BlobsSheetAtomisation<CloudType>& am);
 
         //- Construct and return a clone
-        virtual autoPtr<AtomizationModel<CloudType>> clone() const
+        virtual autoPtr<AtomisationModel<CloudType>> clone() const
         {
-            return autoPtr<AtomizationModel<CloudType>>
+            return autoPtr<AtomisationModel<CloudType>>
             (
-                new BlobsSheetAtomization<CloudType>(*this)
+                new BlobsSheetAtomisation<CloudType>(*this)
             );
         }
 
 
     //- Destructor
-    virtual ~BlobsSheetAtomization();
+    virtual ~BlobsSheetAtomisation();
 
 
     // Member Functions
@@ -129,7 +129,7 @@ public:
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 #ifdef NoRepository
-    #include "BlobsSheetAtomization.C"
+    #include "BlobsSheetAtomisation.C"
 #endif
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
diff --git a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/LISAAtomization/LISAAtomization.C b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/LISAAtomisation/LISAAtomisation.C
similarity index 91%
rename from src/lagrangian/parcel/submodels/Spray/AtomizationModel/LISAAtomization/LISAAtomization.C
rename to src/lagrangian/parcel/submodels/Spray/AtomisationModel/LISAAtomisation/LISAAtomisation.C
index 5bf23d9715..9bfce72dd6 100644
--- a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/LISAAtomization/LISAAtomization.C
+++ b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/LISAAtomisation/LISAAtomisation.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,18 +23,18 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "LISAAtomization.H"
+#include "LISAAtomisation.H"
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::LISAAtomization<CloudType>::LISAAtomization
+Foam::LISAAtomisation<CloudType>::LISAAtomisation
 (
     const dictionary& dict,
     CloudType& owner
 )
 :
-    AtomizationModel<CloudType>(dict, owner, typeName),
+    AtomisationModel<CloudType>(dict, owner, typeName),
     Cl_(this->coeffDict().template lookup<scalar>("Cl")),
     cTau_(this->coeffDict().template lookup<scalar>("cTau")),
     Q_(this->coeffDict().template lookup<scalar>("Q")),
@@ -63,12 +63,12 @@ Foam::LISAAtomization<CloudType>::LISAAtomization
 }
 
 template<class CloudType>
-Foam::LISAAtomization<CloudType>::LISAAtomization
+Foam::LISAAtomisation<CloudType>::LISAAtomisation
 (
-    const LISAAtomization<CloudType>& am
+    const LISAAtomisation<CloudType>& am
 )
 :
-    AtomizationModel<CloudType>(am),
+    AtomisationModel<CloudType>(am),
     Cl_(am.Cl_),
     cTau_(am.cTau_),
     Q_(am.Q_),
@@ -81,28 +81,28 @@ Foam::LISAAtomization<CloudType>::LISAAtomization
 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::LISAAtomization<CloudType>::~LISAAtomization()
+Foam::LISAAtomisation<CloudType>::~LISAAtomisation()
 {}
 
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::scalar Foam::LISAAtomization<CloudType>::initLiquidCore() const
+Foam::scalar Foam::LISAAtomisation<CloudType>::initLiquidCore() const
 {
     return 1.0;
 }
 
 
 template<class CloudType>
-bool Foam::LISAAtomization<CloudType>::calcChi() const
+bool Foam::LISAAtomisation<CloudType>::calcChi() const
 {
     return true;
 }
 
 
 template<class CloudType>
-void Foam::LISAAtomization<CloudType>::update
+void Foam::LISAAtomisation<CloudType>::update
 (
     const scalar dt,
     scalar& d,
@@ -130,7 +130,7 @@ void Foam::LISAAtomization<CloudType>::update
     scalar dL = 0.0;
     scalar k = 0.0;
 
-    // update atomization characteristic time
+    // update atomisation characteristic time
     tc += dt;
 
     scalar We = 0.5*rhoAv*sqr(Urel)*d/sigma;
diff --git a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/LISAAtomization/LISAAtomization.H b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/LISAAtomisation/LISAAtomisation.H
similarity index 81%
rename from src/lagrangian/parcel/submodels/Spray/AtomizationModel/LISAAtomization/LISAAtomization.H
rename to src/lagrangian/parcel/submodels/Spray/AtomisationModel/LISAAtomisation/LISAAtomisation.H
index 6e9c889a34..d9283a826b 100644
--- a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/LISAAtomization/LISAAtomization.H
+++ b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/LISAAtomisation/LISAAtomisation.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,15 +22,15 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::LISAAtomization
+    Foam::LISAAtomisation
 
 Description
-    Primary Breakup Model for pressure swirl atomizers.
+    Primary Breakup Model for pressure swirl atomisers.
 
     Accurate description in
     @verbatim
     P.K. Senecal, D.P. Schmidt, I. Nouar, C.J. Rutland, R.D. Reitz, M. Corradini
-    "Modeling high-speed viscous liquid sheet atomization"
+    "Modeling high-speed viscous liquid sheet atomisation"
     International Journal of Multiphase Flow 25 (1999) pags. 1073-1097
     @endverbatim
 
@@ -38,29 +38,29 @@ Description
 
     @verbatim
     D.P. Schmidt, I. Nouar, P.K. Senecal, C.J. Rutland, J.K. Martin, R.D. Reitz
-    "Pressure-Swirl Atomization in the Near Field"
+    "Pressure-Swirl Atomisation in the Near Field"
     SAE Techical Paper Series 1999-01-0496
     @endverbatim
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef LISAAtomization_H
-#define LISAAtomization_H
+#ifndef LISAAtomisation_H
+#define LISAAtomisation_H
 
-#include "AtomizationModel.H"
+#include "AtomisationModel.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
 /*---------------------------------------------------------------------------*\
-                       Class LISAAtomization Declaration
+                       Class LISAAtomisation Declaration
 \*---------------------------------------------------------------------------*/
 
 template<class CloudType>
-class LISAAtomization
+class LISAAtomisation
 :
-    public AtomizationModel<CloudType>
+    public AtomisationModel<CloudType>
 {
 
 public:
@@ -96,23 +96,23 @@ public:
     // Constructors
 
         //- Construct from dictionary
-        LISAAtomization(const dictionary&, CloudType&);
+        LISAAtomisation(const dictionary&, CloudType&);
 
         //- Construct copy
-        LISAAtomization(const LISAAtomization<CloudType>& am);
+        LISAAtomisation(const LISAAtomisation<CloudType>& am);
 
         //- Construct and return a clone
-        virtual autoPtr<AtomizationModel<CloudType>> clone() const
+        virtual autoPtr<AtomisationModel<CloudType>> clone() const
         {
-            return autoPtr<AtomizationModel<CloudType>>
+            return autoPtr<AtomisationModel<CloudType>>
             (
-                new LISAAtomization<CloudType>(*this)
+                new LISAAtomisation<CloudType>(*this)
             );
         }
 
 
     //- Destructor
-    virtual ~LISAAtomization();
+    virtual ~LISAAtomisation();
 
 
     // Member Functions
@@ -151,7 +151,7 @@ public:
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 #ifdef NoRepository
-    #include "LISAAtomization.C"
+    #include "LISAAtomisation.C"
 #endif
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
diff --git a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/LISAAtomization/LISASMDCalcMethod1.H b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/LISAAtomisation/LISASMDCalcMethod1.H
similarity index 100%
rename from src/lagrangian/parcel/submodels/Spray/AtomizationModel/LISAAtomization/LISASMDCalcMethod1.H
rename to src/lagrangian/parcel/submodels/Spray/AtomisationModel/LISAAtomisation/LISASMDCalcMethod1.H
diff --git a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/LISAAtomization/LISASMDCalcMethod2.H b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/LISAAtomisation/LISASMDCalcMethod2.H
similarity index 100%
rename from src/lagrangian/parcel/submodels/Spray/AtomizationModel/LISAAtomization/LISASMDCalcMethod2.H
rename to src/lagrangian/parcel/submodels/Spray/AtomisationModel/LISAAtomisation/LISASMDCalcMethod2.H
diff --git a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/NoAtomization/NoAtomization.C b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/NoAtomisation/NoAtomisation.C
similarity index 80%
rename from src/lagrangian/parcel/submodels/Spray/AtomizationModel/NoAtomization/NoAtomization.C
rename to src/lagrangian/parcel/submodels/Spray/AtomisationModel/NoAtomisation/NoAtomisation.C
index d11de58f6d..bafd0fad2d 100644
--- a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/NoAtomization/NoAtomization.C
+++ b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/NoAtomisation/NoAtomisation.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -23,56 +23,56 @@ License
 
 \*---------------------------------------------------------------------------*/
 
-#include "NoAtomization.H"
+#include "NoAtomisation.H"
 
 // * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::NoAtomization<CloudType>::NoAtomization
+Foam::NoAtomisation<CloudType>::NoAtomisation
 (
     const dictionary& dict,
     CloudType& owner
 )
 :
-    AtomizationModel<CloudType>(owner)
+    AtomisationModel<CloudType>(owner)
 {}
 
 
 template<class CloudType>
-Foam::NoAtomization<CloudType>::NoAtomization
+Foam::NoAtomisation<CloudType>::NoAtomisation
 (
-    const NoAtomization<CloudType>& am
+    const NoAtomisation<CloudType>& am
 )
 :
-    AtomizationModel<CloudType>(am)
+    AtomisationModel<CloudType>(am)
 {}
 
 
 // * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::NoAtomization<CloudType>::~NoAtomization()
+Foam::NoAtomisation<CloudType>::~NoAtomisation()
 {}
 
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
 template<class CloudType>
-Foam::scalar Foam::NoAtomization<CloudType>::initLiquidCore() const
+Foam::scalar Foam::NoAtomisation<CloudType>::initLiquidCore() const
 {
     return 0;
 }
 
 
 template<class CloudType>
-bool Foam::NoAtomization<CloudType>::calcChi() const
+bool Foam::NoAtomisation<CloudType>::calcChi() const
 {
     return false;
 }
 
 
 template<class CloudType>
-void Foam::NoAtomization<CloudType>::update
+void Foam::NoAtomisation<CloudType>::update
 (
     const scalar dt,
     scalar& d,
diff --git a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/NoAtomization/NoAtomization.H b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/NoAtomisation/NoAtomisation.H
similarity index 81%
rename from src/lagrangian/parcel/submodels/Spray/AtomizationModel/NoAtomization/NoAtomization.H
rename to src/lagrangian/parcel/submodels/Spray/AtomisationModel/NoAtomisation/NoAtomisation.H
index fb014b379e..439862d300 100644
--- a/src/lagrangian/parcel/submodels/Spray/AtomizationModel/NoAtomization/NoAtomization.H
+++ b/src/lagrangian/parcel/submodels/Spray/AtomisationModel/NoAtomisation/NoAtomisation.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -22,30 +22,30 @@ License
     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
 Class
-    Foam::NoAtomization
+    Foam::NoAtomisation
 
 Description
     Dummy phase change model for 'none'
 
 \*---------------------------------------------------------------------------*/
 
-#ifndef NoAtomization_H
-#define NoAtomization_H
+#ifndef NoAtomisation_H
+#define NoAtomisation_H
 
-#include "AtomizationModel.H"
+#include "AtomisationModel.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
 /*---------------------------------------------------------------------------*\
-                        Class NoAtomization Declaration
+                        Class NoAtomisation Declaration
 \*---------------------------------------------------------------------------*/
 
 template<class CloudType>
-class NoAtomization
+class NoAtomisation
 :
-    public AtomizationModel<CloudType>
+    public AtomisationModel<CloudType>
 {
 public:
 
@@ -56,23 +56,23 @@ public:
     // Constructors
 
         //- Construct from dictionary
-        NoAtomization(const dictionary& dict, CloudType& cloud);
+        NoAtomisation(const dictionary& dict, CloudType& cloud);
 
         //- Construct copy
-        NoAtomization(const NoAtomization<CloudType>& am);
+        NoAtomisation(const NoAtomisation<CloudType>& am);
 
         //- Construct and return a clone
-        virtual autoPtr<AtomizationModel<CloudType>> clone() const
+        virtual autoPtr<AtomisationModel<CloudType>> clone() const
         {
-            return autoPtr<AtomizationModel<CloudType>>
+            return autoPtr<AtomisationModel<CloudType>>
             (
-                new NoAtomization<CloudType>(*this)
+                new NoAtomisation<CloudType>(*this)
             );
         }
 
 
     //- Destructor
-    virtual ~NoAtomization();
+    virtual ~NoAtomisation();
 
 
     // Member Functions
@@ -111,7 +111,7 @@ public:
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 #ifdef NoRepository
-    #include "NoAtomization.C"
+    #include "NoAtomisation.C"
 #endif
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
diff --git a/src/lagrangian/parcel/submodels/Spray/BreakupModel/ETAB/ETAB.H b/src/lagrangian/parcel/submodels/Spray/BreakupModel/ETAB/ETAB.H
index ab2f994b45..007feb85cf 100644
--- a/src/lagrangian/parcel/submodels/Spray/BreakupModel/ETAB/ETAB.H
+++ b/src/lagrangian/parcel/submodels/Spray/BreakupModel/ETAB/ETAB.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -30,13 +30,13 @@ Description
     Described in the papers below.
     @verbatim
     F.X. Tanner
-        "Liquid Jet Atomization and Droplet Breakup Modeling of
+        "Liquid Jet Atomisation and Droplet Breakup Modeling of
         Non-Evaporating Diesel Fuel Sprays"
         SAE 970050,
         SAE Transactions: Journal of Engines, Vol 106, Sec 3 pp 127-140
 
     F.X. Tanner and G. Weisser
-        "Simulation of Liquid Jet Atomization for
+        "Simulation of Liquid Jet Atomisation for
         Fuel Sprays by Means of Cascade Drop Breakup Model"
         SAE 980808
         SAE Technical Paper Series
diff --git a/src/lagrangian/parcel/submodels/Spray/BreakupModel/ReitzDiwakar/ReitzDiwakar.H b/src/lagrangian/parcel/submodels/Spray/BreakupModel/ReitzDiwakar/ReitzDiwakar.H
index c8c68e848a..1749aa74c3 100644
--- a/src/lagrangian/parcel/submodels/Spray/BreakupModel/ReitzDiwakar/ReitzDiwakar.H
+++ b/src/lagrangian/parcel/submodels/Spray/BreakupModel/ReitzDiwakar/ReitzDiwakar.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -29,8 +29,8 @@ Description
 
     @verbatim
     Reitz, R.D.
-    "Modelling atomization processes in highpressure vaporizing sprays"
-    Atomization and Spray Technology 3 (1987), 309-337
+    "Modelling atomisation processes in highpressure vaporizing sprays"
+    Atomisation and Spray Technology 3 (1987), 309-337
     @endverbatim
 
     @verbatim
diff --git a/src/lagrangian/parcel/submodels/Spray/BreakupModel/ReitzKHRT/ReitzKHRT.C b/src/lagrangian/parcel/submodels/Spray/BreakupModel/ReitzKHRT/ReitzKHRT.C
index c28e5cc100..8296964b63 100644
--- a/src/lagrangian/parcel/submodels/Spray/BreakupModel/ReitzKHRT/ReitzKHRT.C
+++ b/src/lagrangian/parcel/submodels/Spray/BreakupModel/ReitzKHRT/ReitzKHRT.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -238,7 +238,7 @@ bool Foam::ReitzKHRT<CloudType>::update
     }
     else if (KHindex < 0.5)
     {
-        // Case of larger drops after breakup (Reitz, Atomization & Spray
+        // Case of larger drops after breakup (Reitz, Atomisation & Spray
         // Technology 3 (1987) 309-337, p.322) pIndKH() should be introduced
 
         scalar lengthScale =
diff --git a/src/lagrangian/parcel/submodels/Spray/BreakupModel/SHF/SHF.H b/src/lagrangian/parcel/submodels/Spray/BreakupModel/SHF/SHF.H
index 7ebdb49d12..dcd0c109db 100644
--- a/src/lagrangian/parcel/submodels/Spray/BreakupModel/SHF/SHF.H
+++ b/src/lagrangian/parcel/submodels/Spray/BreakupModel/SHF/SHF.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -31,9 +31,9 @@ Description
     Accurate description in
     @verbatim
     R. Schmehl, G. Maier, S. Witting
-    "CFD Analysis of Fuel Atomization, Secondary Droplet Breakup and Spray
+    "CFD Analysis of Fuel Atomisation, Secondary Droplet Breakup and Spray
     Dispersion in the Premix Duct of a LPP Combustor".
-    Eight International Conference on Liquid Atomization and Spray Systems, 2000
+    Eight International Conference on Liquid Atomisation and Spray Systems, 2000
     @endverbatim
 
 \*---------------------------------------------------------------------------*/
diff --git a/src/mesh/blockMesh/blockEdges/BSplineEdge/BSpline.H b/src/mesh/blockMesh/blockEdges/BSplineEdge/BSpline.H
index 3da5a8f6bf..b4d0e8117e 100644
--- a/src/mesh/blockMesh/blockEdges/BSplineEdge/BSpline.H
+++ b/src/mesh/blockMesh/blockEdges/BSplineEdge/BSpline.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -43,7 +43,7 @@ Description
     end points. Simple reflection is used to automatically create the end
     points.
 
-    The spline is discretized based on the chord length of the individual
+    The spline is discretised based on the chord length of the individual
     segments. In rare cases (sections with very high curvatures), the
     resulting distribution may be sub-optimal.
 
diff --git a/src/mesh/blockMesh/blockEdges/blockEdge/blockEdge.H b/src/mesh/blockMesh/blockEdges/blockEdge/blockEdge.H
index ff498f4469..f42e27d9be 100644
--- a/src/mesh/blockMesh/blockEdges/blockEdge/blockEdge.H
+++ b/src/mesh/blockMesh/blockEdges/blockEdge/blockEdge.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::blockEdge
 
 Description
-    Define a curved edge that is parameterized for 0<lambda<1
+    Define a curved edge that is parameterised for 0<lambda<1
     between the start and end point.
 
 SourceFiles
diff --git a/src/mesh/blockMesh/blockEdges/polyLineEdge/polyLine.C b/src/mesh/blockMesh/blockEdges/polyLineEdge/polyLine.C
index a8b99bdd7c..4ca62d189b 100644
--- a/src/mesh/blockMesh/blockEdges/polyLineEdge/polyLine.C
+++ b/src/mesh/blockMesh/blockEdges/polyLineEdge/polyLine.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -40,7 +40,7 @@ void Foam::polyLine::calcParam()
             param_[i] = param_[i-1] + mag(points_[i] - points_[i-1]);
         }
 
-        // Normalize on the interval 0-1
+        // Normalise on the interval 0-1
         lineLength_ = param_.last();
         for (label i=1; i < param_.size() - 1; i++)
         {
diff --git a/src/mesh/blockMesh/blockEdges/splineEdge/CatmullRomSpline.H b/src/mesh/blockMesh/blockEdges/splineEdge/CatmullRomSpline.H
index 99ce454469..40add7d3b0 100644
--- a/src/mesh/blockMesh/blockEdges/splineEdge/CatmullRomSpline.H
+++ b/src/mesh/blockMesh/blockEdges/splineEdge/CatmullRomSpline.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -44,7 +44,7 @@ Description
     end points. Simple reflection is used to automatically create the end
     points.
 
-    The spline is discretized based on the chord length of the individual
+    The spline is discretised based on the chord length of the individual
     segments. In rare cases (sections with very high curvatures), the
     resulting distribution may be sub-optimal.
 
diff --git a/src/mesh/blockMesh/gradingDescriptor/gradingDescriptors.C b/src/mesh/blockMesh/gradingDescriptor/gradingDescriptors.C
index bc83206273..7cc2d79ae2 100644
--- a/src/mesh/blockMesh/gradingDescriptor/gradingDescriptors.C
+++ b/src/mesh/blockMesh/gradingDescriptor/gradingDescriptors.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2015-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2015-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -75,7 +75,7 @@ Foam::Istream& Foam::operator>>(Istream& is, gradingDescriptors& gds)
         // Check state of Istream
         is.check("operator>>(Istream&, gradingDescriptor&)");
 
-        // Normalize the blockFractions and nDivFractions
+        // Normalise the blockFractions and nDivFractions
         // of the list of gradingDescriptors
 
         scalar sumBlockFraction = 0;
diff --git a/src/mesh/extrudeModel/sector/sector.H b/src/mesh/extrudeModel/sector/sector.H
index 57035a0b25..8b1a2d74de 100644
--- a/src/mesh/extrudeModel/sector/sector.H
+++ b/src/mesh/extrudeModel/sector/sector.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -62,7 +62,7 @@ class sector
         //- Point on axis
         const point axisPt_;
 
-        //- Normalized direction of axis
+        //- Normalised direction of axis
         const vector axis_;
 
         //- Overall angle (radians)
diff --git a/src/mesh/snappyHexMesh/meshRefinement/meshRefinement.C b/src/mesh/snappyHexMesh/meshRefinement/meshRefinement.C
index 1fc9fc8d36..7e2f3b729f 100644
--- a/src/mesh/snappyHexMesh/meshRefinement/meshRefinement.C
+++ b/src/mesh/snappyHexMesh/meshRefinement/meshRefinement.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -416,7 +416,7 @@ void Foam::meshRefinement::checkData()
 
     label nBnd = mesh_.nFaces()-mesh_.nInternalFaces();
 
-    Pout<< "meshRefinement::checkData() : Checking synchronization."
+    Pout<< "meshRefinement::checkData() : Checking synchronisation."
         << endl;
 
     // Check face centres
diff --git a/src/mesh/snappyHexMesh/meshRefinement/meshRefinementBaffles.C b/src/mesh/snappyHexMesh/meshRefinement/meshRefinementBaffles.C
index fc462730fc..43e8fd92c0 100644
--- a/src/mesh/snappyHexMesh/meshRefinement/meshRefinementBaffles.C
+++ b/src/mesh/snappyHexMesh/meshRefinement/meshRefinementBaffles.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -2424,7 +2424,7 @@ void Foam::meshRefinement::baffleAndSplitMesh
 
         if (nCouples > 0)
         {
-            // Actually merge baffles. Note: not exactly parallellized. Should
+            // Actually merge baffles. Note: not exactly parallelised. Should
             // convert baffle faces into processor faces if they resulted
             // from them.
             mergeBaffles(couples);
diff --git a/src/mesh/snappyHexMesh/meshRefinement/meshRefinementRefine.C b/src/mesh/snappyHexMesh/meshRefinement/meshRefinementRefine.C
index 3a87e09714..72f1106e12 100644
--- a/src/mesh/snappyHexMesh/meshRefinement/meshRefinementRefine.C
+++ b/src/mesh/snappyHexMesh/meshRefinement/meshRefinementRefine.C
@@ -82,7 +82,7 @@ namespace Foam
     };
 
 
-    //- Template specialization for pTraits<labelList> so we can have fields
+    //- Template specialisation for pTraits<labelList> so we can have fields
     template<>
     class pTraits<labelList>
     {
@@ -93,7 +93,7 @@ namespace Foam
         typedef labelList cmptType;
     };
 
-    //- Template specialization for pTraits<labelList> so we can have fields
+    //- Template specialisation for pTraits<labelList> so we can have fields
     template<>
     class pTraits<vectorList>
     {
diff --git a/src/mesh/snappyHexMesh/snappyHexMeshDriver/snappyLayerDriver.C b/src/mesh/snappyHexMesh/snappyHexMeshDriver/snappyLayerDriver.C
index e881c15cd0..55c466f1de 100644
--- a/src/mesh/snappyHexMesh/snappyHexMeshDriver/snappyLayerDriver.C
+++ b/src/mesh/snappyHexMesh/snappyHexMeshDriver/snappyLayerDriver.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -1334,7 +1334,7 @@ void Foam::snappyLayerDriver::calculateLayerThickness
 }
 
 
-// Synchronize displacement among coupled patches.
+// Synchronise displacement among coupled patches.
 void Foam::snappyLayerDriver::syncPatchDisplacement
 (
     const indirectPrimitivePatch& pp,
diff --git a/src/mesh/snappyHexMesh/snappyHexMeshDriver/snappyLayerDriver.H b/src/mesh/snappyHexMesh/snappyHexMeshDriver/snappyLayerDriver.H
index 92d81e875d..1837b77a91 100644
--- a/src/mesh/snappyHexMesh/snappyHexMeshDriver/snappyLayerDriver.H
+++ b/src/mesh/snappyHexMesh/snappyHexMeshDriver/snappyLayerDriver.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -263,7 +263,7 @@ private:
 
             // Extrusion execution
 
-                //- Synchronize displacement among coupled patches.
+                //- Synchronise displacement among coupled patches.
                 void syncPatchDisplacement
                 (
                     const indirectPrimitivePatch& pp,
diff --git a/src/mesh/snappyHexMesh/snappyHexMeshDriver/snappyRefineDriver.C b/src/mesh/snappyHexMesh/snappyHexMeshDriver/snappyRefineDriver.C
index dda60618c5..9320e54a74 100644
--- a/src/mesh/snappyHexMesh/snappyHexMeshDriver/snappyRefineDriver.C
+++ b/src/mesh/snappyHexMesh/snappyHexMeshDriver/snappyRefineDriver.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -1045,7 +1045,7 @@ void Foam::snappyRefineDriver::splitAndMergeBaffles
 
     if (nCouples > 0)
     {
-        // Actually merge baffles. Note: not exactly parallellized. Should
+        // Actually merge baffles. Note: not exactly parallelised. Should
         // convert baffle faces into processor faces if they resulted
         // from them.
         meshRefiner_.mergeBaffles(couples);
diff --git a/src/meshTools/coordinateSystems/coordinateSystems.H b/src/meshTools/coordinateSystems/coordinateSystems.H
index b490b06cda..64969a42bd 100644
--- a/src/meshTools/coordinateSystems/coordinateSystems.H
+++ b/src/meshTools/coordinateSystems/coordinateSystems.H
@@ -25,7 +25,7 @@ Class
     Foam::coordinateSystems::coordinateSystems
 
 Description
-    Provides a centralized coordinateSystem collection.
+    Provides a centralised coordinateSystem collection.
 
     For example with the porous region specified in \c constant/fvModels as
 
diff --git a/src/meshTools/edgeMesh/edgeMesh.C b/src/meshTools/edgeMesh/edgeMesh.C
index 28fa0f9824..328e0cbd82 100644
--- a/src/meshTools/edgeMesh/edgeMesh.C
+++ b/src/meshTools/edgeMesh/edgeMesh.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -178,7 +178,7 @@ void Foam::edgeMesh::reset
 )
 {
     // Take over new primitive data.
-    // Optimized to avoid overwriting data at all
+    // Optimised to avoid overwriting data at all
     if (notNull(pointLst))
     {
         points_.transfer(pointLst);
diff --git a/src/meshTools/edgeMesh/edgeMesh.H b/src/meshTools/edgeMesh/edgeMesh.H
index 484e6a8d68..7299461310 100644
--- a/src/meshTools/edgeMesh/edgeMesh.H
+++ b/src/meshTools/edgeMesh/edgeMesh.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -239,7 +239,7 @@ public:
         virtual void clear();
 
         //- Reset primitive data (points, edges)
-        //  Note, optimized to avoid overwriting data (with null)
+        //  Note, optimised to avoid overwriting data (with null)
         virtual void reset
         (
             pointField&& points,
diff --git a/src/meshTools/meshTools/meshTools.H b/src/meshTools/meshTools/meshTools.H
index efdfb8d5ce..92e49b78b0 100644
--- a/src/meshTools/meshTools/meshTools.H
+++ b/src/meshTools/meshTools/meshTools.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -95,7 +95,7 @@ namespace meshTools
         //  coordinate axes)
         vectorField calcBoxPointNormals(const primitivePatch& pp);
 
-        //- Normalized edge vector
+        //- Normalised edge vector
         vector normEdgeVec(const primitiveMesh&, const label edgeI);
 
 
diff --git a/src/meshTools/momentOfInertia/momentOfInertia.C b/src/meshTools/momentOfInertia/momentOfInertia.C
index e7b3e884ed..c3408fe364 100644
--- a/src/meshTools/momentOfInertia/momentOfInertia.C
+++ b/src/meshTools/momentOfInertia/momentOfInertia.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -50,7 +50,7 @@ void Foam::momentOfInertia::massPropertiesSolid
     // Boost Software License - Version 1.0 - August 17th, 2003
 
     // Permission is hereby granted, free of charge, to any person or
-    // organization obtaining a copy of the software and accompanying
+    // organisation obtaining a copy of the software and accompanying
     // documentation covered by this license (the "Software") to use,
     // reproduce, display, distribute, execute, and transmit the
     // Software, and to prepare derivative works of the Software, and
diff --git a/src/meshTools/momentOfInertia/volumeIntegration/README b/src/meshTools/momentOfInertia/volumeIntegration/README
index dadca677b7..fad1ee0133 100644
--- a/src/meshTools/momentOfInertia/volumeIntegration/README
+++ b/src/meshTools/momentOfInertia/volumeIntegration/README
@@ -1,146 +1,146 @@
 1.  OVERVIEW
 
-	This code accompanies the paper:
+    This code accompanies the paper:
 
-	Brian Mirtich, "Fast and Accurate Computation of
-	Polyhedral Mass Properties," journal of graphics
-	tools, volume 1, number 2, 1996.
+    Brian Mirtich, "Fast and Accurate Computation of
+    Polyhedral Mass Properties," journal of graphics
+    tools, volume 1, number 2, 1996.
 
-	It computes the ten volume integrals needed for
-	determining the center of mass, moments of
-	inertia, and products of inertia for a uniform
-	density polyhedron.  From this information, a
-	body frame can be computed.
+    It computes the ten volume integrals needed for
+    determining the center of mass, moments of
+    inertia, and products of inertia for a uniform
+    density polyhedron.  From this information, a
+    body frame can be computed.
 
-	To compile the program, use an ANSI compiler, and
-	type something like
-  
-		% cc volInt.c -O2 -lm -o volInt
+    To compile the program, use an ANSI compiler, and
+    type something like
 
+        % cc volInt.c -O2 -lm -o volInt
 
-	Revision history
 
-	26 Jan 1996	Program creation.
+    Revision history
 
-	 3 Aug 1996	Corrected bug arising when polyhedron density
-			is not 1.0.  Changes confined to function main().
-			Thanks to Zoran Popovic for catching this one.
+    26 Jan 1996 Program creation.
+
+     3 Aug 1996 Corrected bug arising when polyhedron density
+            is not 1.0.  Changes confined to function main().
+            Thanks to Zoran Popovic for catching this one.
 
 
 
 2.  POLYHEDRON GEOMETRY FILES
 
-	The program reads a data file specified on the
-	command line.  This data file describes the
-	geometry of a polyhedron, and has the following
-	format:
+    The program reads a data file specified on the
+    command line.  This data file describes the
+    geometry of a polyhedron, and has the following
+    format:
 
-	N	
+    N
 
-	x_0	y_0	z_0
-	x_1	y_1	z_1
-	.
-	.
-	.
-	x_{N-1}	y_{N-1}	z_{N-1}
+    x_0 y_0 z_0
+    x_1 y_1 z_1
+    .
+    .
+    .
+    x_{N-1} y_{N-1} z_{N-1}
 
-	M
+    M
 
-	k1	v_{1,1} v_{1,2} ... v_{1,k1}
-	k2	v_{2,1} v_{2,2} ... v_{2,k2}
-	.
-	.
-	.
-	kM	v_{M,1} v_{M,2} ... v_{M,kM}
+    k1  v_{1,1} v_{1,2} ... v_{1,k1}
+    k2  v_{2,1} v_{2,2} ... v_{2,k2}
+    .
+    .
+    .
+    kM  v_{M,1} v_{M,2} ... v_{M,kM}
 
 
-	where:
-		N		number of vertices on polyhedron
-		x_i y_i z_i	x, y, and z coordinates of ith vertex
-		M		number of faces on polyhedron
-		ki		number of vertices on ith face
-		v_{i,j}		jth vertex on ith face
+    where:
+        N       number of vertices on polyhedron
+        x_i y_i z_i x, y, and z coordinates of ith vertex
+        M       number of faces on polyhedron
+        ki      number of vertices on ith face
+        v_{i,j}     jth vertex on ith face
 
-	In English:
+    In English:
 
-		First the number of vertices are specified.  Next
-		the vertices are defined by listing the 3
-		coordinates of each one.  Next the number of faces
-		are specified.  Finally, the faces themselves are
-		specified.  A face is specified by first giving
-		the number of vertices around the polygonal face,
-		followed by the (integer) indices of these
-		vertices.  When specifying indices, note that
-		they must be given in counter-clockwise order
-		(when looking at the face from outside the
-		polyhedron), and the vertices are indexed from 0
-		to N-1 for a polyhedron with N faces.
+        First the number of vertices are specified.  Next
+        the vertices are defined by listing the 3
+        coordinates of each one.  Next the number of faces
+        are specified.  Finally, the faces themselves are
+        specified.  A face is specified by first giving
+        the number of vertices around the polygonal face,
+        followed by the (integer) indices of these
+        vertices.  When specifying indices, note that
+        they must be given in counter-clockwise order
+        (when looking at the face from outside the
+        polyhedron), and the vertices are indexed from 0
+        to N-1 for a polyhedron with N faces.
 
-	White space can be inserted (or not) as desired.
-	Three example polyhedron geometry files are included:
+    White space can be inserted (or not) as desired.
+    Three example polyhedron geometry files are included:
 
-	cube	A cube, 20 units on a side, centered at 
-		the origin and aligned with the coordinate axes.
+    cube    A cube, 20 units on a side, centered at
+        the origin and aligned with the coordinate axes.
 
-	tetra	A tetrahedron formed by taking the convex 
-		hull of the origin, and	the points (5,0,0), 
-		(0,4,0), and (0,0,3).
+    tetra   A tetrahedron formed by taking the convex
+        hull of the origin, and the points (5,0,0),
+        (0,4,0), and (0,0,3).
 
-	icosa	An icosahedron with vertices lying on the unit 
-		sphere, centered at the origin.
+    icosa   An icosahedron with vertices lying on the unit
+        sphere, centered at the origin.
 
 
 
 3.  RUNNING THE PROGRAM
 
-	Simply type,
-	
-		% volInt <polyhedron geometry filename>
+    Simply type,
+
+        % volInt <polyhedron geometry filename>
 
-	The program will read in the geometry of the
-	polyhedron, and the print out the ten volume
-	integrals.
+    The program will read in the geometry of the
+    polyhedron, and the print out the ten volume
+    integrals.
 
-	The program also computes some of the mass
-	properties which may be inferred from the volume
-	integrals.  A density of 1.0 is assumed, although
-	this may be changed in function main().  The
-	center of mass is computed as well as the inertia
-	tensor relative to a frame with origin at the
-	center of mass.  Note, however, that this matrix
-	may not be diagonal.  If not, a diagonalization
-	routine must be performed, to determine the
-	orientation of the true body frame relative to
-	the original model frame.  The Jacobi method
-	works quite well (see Numerical Recipes in C by
-	Press, et. al.).
+    The program also computes some of the mass
+    properties which may be inferred from the volume
+    integrals.  A density of 1.0 is assumed, although
+    this may be changed in function main().  The
+    center of mass is computed as well as the inertia
+    tensor relative to a frame with origin at the
+    center of mass.  Note, however, that this matrix
+    may not be diagonal.  If not, a diagonalization
+    routine must be performed, to determine the
+    orientation of the true body frame relative to
+    the original model frame.  The Jacobi method
+    works quite well (see Numerical Recipes in C by
+    Press, et. al.).
 
 
 
 4.  DISCLAIMERS
 
-	1.  The volume integration code has been written
-	to match the development and algorithms presented
-	in the paper, and not with maximum optimization
-	in mind.  While inherently very efficient, a few
-	more cycles can be squeezed out of the algorithm.
-	This is left as an exercise. :)
-
-	2.  Don't like global variables?  The three
-	procedures which evaluate the volume integrals
-	can be combined into a single procedure with two
-	nested loops.  In addition to providing some
-	speedup, all of the global variables can then be
-	made local.
-
-	3.  The polyhedron data structure used by the
-	program is admittedly lame; much better schemes
-	are possible.  The idea here is just to give the
-	basic integral evaluation code, which will have
-	to be adjusted for other polyhedron data
-	structures.
-
-	4.  There is no error checking for the input
-	files.  Be careful.  Note the hard limits
-	#defined for the number of vertices, number of
-	faces, and number of vertices per faces.
+    1.  The volume integration code has been written
+    to match the development and algorithms presented
+    in the paper, and not with maximum optimisation
+    in mind.  While inherently very efficient, a few
+    more cycles can be squeezed out of the algorithm.
+    This is left as an exercise. :)
+
+    2.  Don't like global variables?  The three
+    procedures which evaluate the volume integrals
+    can be combined into a single procedure with two
+    nested loops.  In addition to providing some
+    speedup, all of the global variables can then be
+    made local.
+
+    3.  The polyhedron data structure used by the
+    program is admittedly lame; much better schemes
+    are possible.  The idea here is just to give the
+    basic integral evaluation code, which will have
+    to be adjusted for other polyhedron data
+    structures.
+
+    4.  There is no error checking for the input
+    files.  Be careful.  Note the hard limits
+    #defined for the number of vertices, number of
+    faces, and number of vertices per faces.
diff --git a/src/meshTools/regionSplit/localPointRegion.C b/src/meshTools/regionSplit/localPointRegion.C
index e01a71166a..cc90ad0fdb 100644
--- a/src/meshTools/regionSplit/localPointRegion.C
+++ b/src/meshTools/regionSplit/localPointRegion.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -331,7 +331,7 @@ void Foam::localPointRegion::calcPointRegions
         }
     }
 
-    // Now minimize over all faces that are connected through internal
+    // Now minimise over all faces that are connected through internal
     // faces or through cells. This loop iterates over the max number of
     // cells connected to a point (=8 for hex mesh)
 
diff --git a/src/meshTools/regionSplit/regionSplit.C b/src/meshTools/regionSplit/regionSplit.C
index 6a808b4681..3649644c90 100644
--- a/src/meshTools/regionSplit/regionSplit.C
+++ b/src/meshTools/regionSplit/regionSplit.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -172,7 +172,7 @@ Foam::autoPtr<Foam::globalIndex> Foam::regionSplit::calcRegionSplit
         }
         const globalIndex globalRegions(move(offsets));
 
-        // Minimize regions across connected cells
+        // Minimise regions across connected cells
         // Note: still uses global decisions so all processors are running
         //       in lock-step, i.e. slowest determines overall time.
         //       To avoid this we could switch off Pstream::parRun.
@@ -221,7 +221,7 @@ Foam::autoPtr<Foam::globalIndex> Foam::regionSplit::calcRegionSplit
     // Initial global region numbers
     const globalIndex globalRegions(mesh().nFaces());
 
-    // Minimize regions across connected cells (including parallel)
+    // Minimise regions across connected cells (including parallel)
     calcNonCompactRegionSplit
     (
         globalRegions,
diff --git a/src/meshTools/sets/faceSources/normalToFace/normalToFace.C b/src/meshTools/sets/faceSources/normalToFace/normalToFace.C
index 66a98ebe1d..9a4c6e52e0 100644
--- a/src/meshTools/sets/faceSources/normalToFace/normalToFace.C
+++ b/src/meshTools/sets/faceSources/normalToFace/normalToFace.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -53,7 +53,7 @@ void Foam::normalToFace::setNormal()
 {
     normal_ /= mag(normal_) + vSmall;
 
-    Info<< "    normalToFace : Normalized vector to " << normal_ << endl;
+    Info<< "    normalToFace : Normalised vector to " << normal_ << endl;
 
     if (tol_ < -1 || tol_ > 1)
     {
diff --git a/src/meshTools/sets/faceSources/normalToFace/normalToFace.H b/src/meshTools/sets/faceSources/normalToFace/normalToFace.H
index bc5306b6d5..b33a7a2ce1 100644
--- a/src/meshTools/sets/faceSources/normalToFace/normalToFace.H
+++ b/src/meshTools/sets/faceSources/normalToFace/normalToFace.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -66,7 +66,7 @@ private:
 
     // Private Member Functions
 
-        //- Normalize normal and check tolerance
+        //- Normalise normal and check tolerance
         void setNormal();
 
 
diff --git a/src/meshTools/triSurface/booleanOps/intersectedSurface/intersectedSurface.C b/src/meshTools/triSurface/booleanOps/intersectedSurface/intersectedSurface.C
index 7bca48cdbc..13ed53727a 100644
--- a/src/meshTools/triSurface/booleanOps/intersectedSurface/intersectedSurface.C
+++ b/src/meshTools/triSurface/booleanOps/intersectedSurface/intersectedSurface.C
@@ -465,7 +465,7 @@ Foam::label Foam::intersectedSurface::nextEdge
         }
 
         FatalErrorInFunction
-            << "Unnormalized normal e1:" << e1
+            << "Unnormalised normal e1:" << e1
             << " formed from cross product of e0:" << e0 << " n:" << n
             << abort(FatalError);
     }
diff --git a/src/meshTools/triSurface/booleanOps/surfaceIntersection/edgeIntersections.C b/src/meshTools/triSurface/booleanOps/surfaceIntersection/edgeIntersections.C
index 2449451948..15617d8d06 100644
--- a/src/meshTools/triSurface/booleanOps/surfaceIntersection/edgeIntersections.C
+++ b/src/meshTools/triSurface/booleanOps/surfaceIntersection/edgeIntersections.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -341,7 +341,7 @@ bool Foam::edgeIntersections::rotatePerturb
 
             rndVec -= n*(n & rndVec);
 
-            // Normalize
+            // Normalise
             rndVec /= mag(rndVec) + vSmall;
 
             // Scale to be moved by tolerance.
diff --git a/src/meshTools/triSurface/booleanOps/surfaceIntersection/surfaceIntersection.C b/src/meshTools/triSurface/booleanOps/surfaceIntersection/surfaceIntersection.C
index aaacc9320e..c7d7a16332 100644
--- a/src/meshTools/triSurface/booleanOps/surfaceIntersection/surfaceIntersection.C
+++ b/src/meshTools/triSurface/booleanOps/surfaceIntersection/surfaceIntersection.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -45,7 +45,7 @@ defineTypeNameAndDebug(surfaceIntersection, 0);
 // * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
 // Checks if there exists a special topological situation that causes
-// edge and the face it hit not to be recognized.
+// edge and the face it hit not to be recognised.
 //
 // For now if the face shares a point with the edge
 bool Foam::surfaceIntersection::excludeEdgeHit
diff --git a/src/meshTools/triSurface/surfaceFeatures/surfaceFeatures.C b/src/meshTools/triSurface/surfaceFeatures/surfaceFeatures.C
index 20bb57bb79..93243b7707 100644
--- a/src/meshTools/triSurface/surfaceFeatures/surfaceFeatures.C
+++ b/src/meshTools/triSurface/surfaceFeatures/surfaceFeatures.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -779,7 +779,7 @@ Foam::labelList Foam::surfaceFeatures::trimFeatures
          || (leftPath.n_ + rightPath.n_ + 1 < minElems)
         )
         {
-            // Rewalk same route (recognizable by featLines == featI)
+            // Rewalk same route (recognisable by featLines == featI)
             // to reset featLines.
 
             featLines[startEdgeI] = -2;
@@ -1031,7 +1031,7 @@ Foam::Map<Foam::label> Foam::surfaceFeatures::nearestSamples
                 << ' ' << surfPoints[e[1]] << endl;
         }
 
-        // Normalized edge vector
+        // Normalised edge vector
         vector eVec = e.vec(surfPoints);
         scalar eMag = mag(eVec);
         eVec /= eMag;
@@ -1177,7 +1177,7 @@ Foam::Map<Foam::pointIndexHit> Foam::surfaceFeatures::nearestEdges
                 << ' ' << surfPoints[e[1]] << endl;
         }
 
-        // Normalized edge vector
+        // Normalised edge vector
         vector eVec = e.vec(surfPoints);
         scalar eMag = mag(eVec);
         eVec /= eMag;
diff --git a/src/meshTools/triSurface/surfaceFeatures/surfaceFeatures.H b/src/meshTools/triSurface/surfaceFeatures/surfaceFeatures.H
index e68527e80d..5e84621d97 100644
--- a/src/meshTools/triSurface/surfaceFeatures/surfaceFeatures.H
+++ b/src/meshTools/triSurface/surfaceFeatures/surfaceFeatures.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -410,7 +410,7 @@ public:
             void write(const fileName& fName) const;
 
             //- Write to separate OBJ files (region, external, internal edges,
-            //  feature points) for visualization
+            //  feature points) for visualisation
             void writeObj(const fileName& prefix) const;
 
 
diff --git a/src/parallel/decompose/decompositionMethods/decompositionMethod/decompositionMethod.H b/src/parallel/decompose/decompositionMethods/decompositionMethod/decompositionMethod.H
index ff859c8c38..3c8fca4bec 100644
--- a/src/parallel/decompose/decompositionMethods/decompositionMethod/decompositionMethod.H
+++ b/src/parallel/decompose/decompositionMethods/decompositionMethod/decompositionMethod.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -109,7 +109,7 @@ public:
             return nProcessors_;
         }
 
-        //- Is method parallel aware (i.e. does it synchronize domains across
+        //- Is method parallel aware (i.e. does it synchronise domains across
         //  proc boundaries)
         virtual bool parallelAware() const = 0;
 
diff --git a/src/parallel/decompose/decompositionMethods/multiLevelDecomp/multiLevelDecomp.H b/src/parallel/decompose/decompositionMethods/multiLevelDecomp/multiLevelDecomp.H
index 02bb120d55..7cff76d44d 100644
--- a/src/parallel/decompose/decompositionMethods/multiLevelDecomp/multiLevelDecomp.H
+++ b/src/parallel/decompose/decompositionMethods/multiLevelDecomp/multiLevelDecomp.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -106,7 +106,7 @@ public:
 
     // Member Functions
 
-        //- Is method parallel aware (i.e. does it synchronize domains across
+        //- Is method parallel aware (i.e. does it synchronise domains across
         //  proc boundaries)
         virtual bool parallelAware() const;
 
diff --git a/src/parallel/decompose/decompositionMethods/structuredDecomp/structuredDecomp.H b/src/parallel/decompose/decompositionMethods/structuredDecomp/structuredDecomp.H
index 6af10eefa7..0c612e0a7f 100644
--- a/src/parallel/decompose/decompositionMethods/structuredDecomp/structuredDecomp.H
+++ b/src/parallel/decompose/decompositionMethods/structuredDecomp/structuredDecomp.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -79,7 +79,7 @@ public:
 
     // Member Functions
 
-        //- Is method parallel aware (i.e. does it synchronize domains across
+        //- Is method parallel aware (i.e. does it synchronise domains across
         //  proc boundaries)
         virtual bool parallelAware() const;
 
diff --git a/src/regionModels/surfaceFilmModels/submodels/kinematic/ejectionModel/BrunDrippingEjection/BrunDrippingEjection.H b/src/regionModels/surfaceFilmModels/submodels/kinematic/ejectionModel/BrunDrippingEjection/BrunDrippingEjection.H
index 02a44192b8..e90de21943 100644
--- a/src/regionModels/surfaceFilmModels/submodels/kinematic/ejectionModel/BrunDrippingEjection/BrunDrippingEjection.H
+++ b/src/regionModels/surfaceFilmModels/submodels/kinematic/ejectionModel/BrunDrippingEjection/BrunDrippingEjection.H
@@ -45,7 +45,7 @@ Description
     Reference:
     \verbatim
         Lefebvre, A. (1988).
-        Atomization and sprays
+        Atomisation and sprays
         (Vol. 1040, No. 2756). CRC press.
     \endverbatim
 
diff --git a/src/rigidBodyDynamics/bodies/compositeBody/compositeBody.H b/src/rigidBodyDynamics/bodies/compositeBody/compositeBody.H
index db6743f808..4d7bd9cbe0 100644
--- a/src/rigidBodyDynamics/bodies/compositeBody/compositeBody.H
+++ b/src/rigidBodyDynamics/bodies/compositeBody/compositeBody.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::RBD::compositeBody
 
 Description
-    This specialized rigidBody holds the original body after it has been merged
+    This specialised rigidBody holds the original body after it has been merged
     into a parent.
 
 SourceFiles
diff --git a/src/rigidBodyDynamics/bodies/cuboid/cuboid.H b/src/rigidBodyDynamics/bodies/cuboid/cuboid.H
index 9209b25a1f..9445f95256 100644
--- a/src/rigidBodyDynamics/bodies/cuboid/cuboid.H
+++ b/src/rigidBodyDynamics/bodies/cuboid/cuboid.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::RBD::cuboid
 
 Description
-    Specialization of rigidBody to construct a cuboid given the mass and
+    Specialisation of rigidBody to construct a cuboid given the mass and
     lengths of the sides.
 
 SourceFiles
diff --git a/src/rigidBodyDynamics/bodies/sphere/sphere.H b/src/rigidBodyDynamics/bodies/sphere/sphere.H
index c502bbd4cb..b047596f71 100644
--- a/src/rigidBodyDynamics/bodies/sphere/sphere.H
+++ b/src/rigidBodyDynamics/bodies/sphere/sphere.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::RBD::sphere
 
 Description
-    Specialization of rigidBody to construct a sphere given the mass and radius.
+    Specialisation of rigidBody to construct a sphere given the mass and radius.
 
 SourceFiles
     sphereI.H
diff --git a/src/rigidBodyDynamics/bodies/subBody/subBody.H b/src/rigidBodyDynamics/bodies/subBody/subBody.H
index 585e870606..5893e46776 100644
--- a/src/rigidBodyDynamics/bodies/subBody/subBody.H
+++ b/src/rigidBodyDynamics/bodies/subBody/subBody.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::RBD::subBody
 
 Description
-    This specialized rigidBody holds the original body after it has been merged
+    This specialised rigidBody holds the original body after it has been merged
     into a master.
 
 SourceFiles
diff --git a/src/rigidBodyDynamics/rigidBodySolvers/rigidBodySolver/rigidBodySolver.C b/src/rigidBodyDynamics/rigidBodySolvers/rigidBodySolver/rigidBodySolver.C
index 472d4debc8..9abc00c205 100644
--- a/src/rigidBodyDynamics/rigidBodySolvers/rigidBodySolver/rigidBodySolver.C
+++ b/src/rigidBodyDynamics/rigidBodySolvers/rigidBodySolver/rigidBodySolver.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2016-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2016-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -76,7 +76,7 @@ void Foam::RBD::rigidBodySolver::correctQuaternionJoints()
                     // Transform the previous time unit quaternion
                     quaternion quat
                     (
-                        normalize(model_.joints()[i].unitQuaternion(q0())*dQuat)
+                        normalise(model_.joints()[i].unitQuaternion(q0())*dQuat)
                     );
 
                     // Update the joint unit quaternion
diff --git a/src/sampling/probes/probes.H b/src/sampling/probes/probes.H
index 7d3e8ad1de..22c3bcf014 100644
--- a/src/sampling/probes/probes.H
+++ b/src/sampling/probes/probes.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -113,14 +113,14 @@ protected:
 
         // Calculated
 
-            //- Categorized scalar/vector/tensor vol fields
+            //- Categorised scalar/vector/tensor vol fields
             fieldGroup<scalar> scalarFields_;
             fieldGroup<vector> vectorFields_;
             fieldGroup<sphericalTensor> sphericalTensorFields_;
             fieldGroup<symmTensor> symmTensorFields_;
             fieldGroup<tensor> tensorFields_;
 
-            //- Categorized scalar/vector/tensor surf fields
+            //- Categorised scalar/vector/tensor surf fields
             fieldGroup<scalar> surfaceScalarFields_;
             fieldGroup<vector> surfaceVectorFields_;
             fieldGroup<sphericalTensor> surfaceSphericalTensorFields_;
diff --git a/src/sampling/sampledSet/sampledSets/sampledSets.H b/src/sampling/sampledSet/sampledSets/sampledSets.H
index 9a90783cc2..83dd40677f 100644
--- a/src/sampling/sampledSet/sampledSets/sampledSets.H
+++ b/src/sampling/sampledSet/sampledSets/sampledSets.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -185,7 +185,7 @@ class sampledSets
             word writeFormat_;
 
 
-        // Categorized scalar/vector/tensor fields
+        // Categorised scalar/vector/tensor fields
 
             fieldGroup<scalar> scalarFields_;
             fieldGroup<vector> vectorFields_;
diff --git a/src/sampling/sampledSurface/sampledSurfaces/sampledSurfaces.C b/src/sampling/sampledSurface/sampledSurfaces/sampledSurfaces.C
index bd8e2b80e0..5b8b0fc724 100644
--- a/src/sampling/sampledSurface/sampledSurfaces/sampledSurfaces.C
+++ b/src/sampling/sampledSurface/sampledSurfaces/sampledSurfaces.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -190,7 +190,7 @@ bool Foam::functionObjects::sampledSurfaces::write()
 {
     if (size())
     {
-        // Finalize surfaces, merge points etc.
+        // Finalise surfaces, merge points etc.
         update();
 
         const label nFields = classifyFields();
diff --git a/src/sampling/sampledSurface/writers/nastran/nastranSurfaceWriter.C b/src/sampling/sampledSurface/writers/nastran/nastranSurfaceWriter.C
index 10dba1277a..6455a938be 100644
--- a/src/sampling/sampledSurface/writers/nastran/nastranSurfaceWriter.C
+++ b/src/sampling/sampledSurface/writers/nastran/nastranSurfaceWriter.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2012-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2012-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -55,7 +55,7 @@ void Foam::nastranSurfaceWriter::formatOS(OFstream& os) const
 {
     os.setf(ios_base::scientific);
 
-    // capitalize the E marker
+    // Capitalise the E marker
     os.setf(ios_base::uppercase);
 
     label prec = 0;
diff --git a/src/surfMesh/MeshedSurface/MeshedSurface.C b/src/surfMesh/MeshedSurface/MeshedSurface.C
index c035dc9294..23010eb468 100644
--- a/src/surfMesh/MeshedSurface/MeshedSurface.C
+++ b/src/surfMesh/MeshedSurface/MeshedSurface.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -408,7 +408,7 @@ void Foam::MeshedSurface<Face>::remapFaces
 
         if (zones.size() == 1)
         {
-            // optimized for single zone case
+            // optimised for single zone case
             zones[0].size() = faceMap.size();
         }
         else if (zones.size())
@@ -494,7 +494,7 @@ void Foam::MeshedSurface<Face>::reset
     ParentType::clearOut();
 
     // Take over new primitive data.
-    // Optimized to avoid overwriting data at all
+    // Optimised to avoid overwriting data at all
     if (notNull(pointLst))
     {
         storedPoints().transfer(pointLst);
@@ -523,7 +523,7 @@ void Foam::MeshedSurface<Face>::reset
     ParentType::clearOut();
 
     // Take over new primitive data.
-    // Optimized to avoid overwriting data at all
+    // Optimised to avoid overwriting data at all
     if (notNull(pointLst))
     {
         storedPoints().transfer(pointLst);
diff --git a/src/surfMesh/MeshedSurface/MeshedSurface.H b/src/surfMesh/MeshedSurface/MeshedSurface.H
index 7a1e61aef2..1e51063ce5 100644
--- a/src/surfMesh/MeshedSurface/MeshedSurface.H
+++ b/src/surfMesh/MeshedSurface/MeshedSurface.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -340,7 +340,7 @@ public:
             virtual void scalePoints(const scalar);
 
             //- Reset primitive data (points, faces and zones)
-            //  Note, optimized to avoid overwriting data (with null)
+            //  Note, optimised to avoid overwriting data (with null)
             virtual void reset
             (
                 pointField&& points,
@@ -349,7 +349,7 @@ public:
             );
 
             //- Reset primitive data (points, faces and zones)
-            //  Note, optimized to avoid overwriting data (with null)
+            //  Note, optimised to avoid overwriting data (with null)
             virtual void reset
             (
                 List<point>&& points,
@@ -436,7 +436,7 @@ public:
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-//- Specialization for holding triangulated information
+//- Specialisation for holding triangulated information
 template<>
 inline bool MeshedSurface<triFace>::isTri()
 {
@@ -444,7 +444,7 @@ inline bool MeshedSurface<triFace>::isTri()
 }
 
 
-//- Specialization for holding triangulated information
+//- Specialisation for holding triangulated information
 template<>
 inline label MeshedSurface<triFace>::triangulate()
 {
@@ -452,7 +452,7 @@ inline label MeshedSurface<triFace>::triangulate()
 }
 
 
-//- Specialization for holding triangulated information
+//- Specialisation for holding triangulated information
 template<>
 inline label MeshedSurface<triFace>::triangulate(List<label>& faceMap)
 {
diff --git a/src/surfMesh/MeshedSurface/MeshedSurfaceCore.C b/src/surfMesh/MeshedSurface/MeshedSurfaceCore.C
index 6ed6f18546..f8ba002aee 100644
--- a/src/surfMesh/MeshedSurface/MeshedSurfaceCore.C
+++ b/src/surfMesh/MeshedSurface/MeshedSurfaceCore.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -30,7 +30,7 @@ License
 namespace Foam
 {
 
-    // specialization: from face -> triFace
+    // specialisation: from face -> triFace
     template<>
     void Foam::MeshedSurface<triFace>::transcribe(MeshedSurface<face>& surf)
     {
@@ -55,7 +55,7 @@ namespace Foam
     }
 
 
-    // specialization: from face -> face
+    // specialisation: from face -> face
     template<>
     void Foam::MeshedSurface<face>::transcribe(MeshedSurface<face>& surf)
     {
diff --git a/src/surfMesh/MeshedSurfaceAllocator/MeshedSurfaceIOAllocator.C b/src/surfMesh/MeshedSurfaceAllocator/MeshedSurfaceIOAllocator.C
index 0dae4f261c..0a36698083 100644
--- a/src/surfMesh/MeshedSurfaceAllocator/MeshedSurfaceIOAllocator.C
+++ b/src/surfMesh/MeshedSurfaceAllocator/MeshedSurfaceIOAllocator.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -108,7 +108,7 @@ void Foam::MeshedSurfaceIOAllocator::reset
 )
 {
     // Take over new primitive data.
-    // Optimized to avoid overwriting data at all
+    // Optimised to avoid overwriting data at all
     if (notNull(points))
     {
         points_.transfer(points);
@@ -126,7 +126,7 @@ void Foam::MeshedSurfaceIOAllocator::reset
 )
 {
     // Take over new primitive data.
-    // Optimized to avoid overwriting data at all
+    // Optimised to avoid overwriting data at all
     if (notNull(points))
     {
         points_.transfer(points);
diff --git a/src/surfMesh/MeshedSurfaceAllocator/MeshedSurfaceIOAllocator.H b/src/surfMesh/MeshedSurfaceAllocator/MeshedSurfaceIOAllocator.H
index 1c19024449..fe7d7df13a 100644
--- a/src/surfMesh/MeshedSurfaceAllocator/MeshedSurfaceIOAllocator.H
+++ b/src/surfMesh/MeshedSurfaceAllocator/MeshedSurfaceIOAllocator.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -162,7 +162,7 @@ public:
             );
 
             //- Reset primitive data (points, faces and zones)
-            //  Note, optimized to avoid overwriting data (with null)
+            //  Note, optimised to avoid overwriting data (with null)
             void reset
             (
                 List<point>&& points,
diff --git a/src/surfMesh/UnsortedMeshedSurface/UnsortedMeshedSurface.C b/src/surfMesh/UnsortedMeshedSurface/UnsortedMeshedSurface.C
index 6e3e443a5f..c47c0f894b 100644
--- a/src/surfMesh/UnsortedMeshedSurface/UnsortedMeshedSurface.C
+++ b/src/surfMesh/UnsortedMeshedSurface/UnsortedMeshedSurface.C
@@ -403,7 +403,7 @@ void Foam::UnsortedMeshedSurface<Face>::remapFaces
         }
         else if (zoneToc_.size() == 1)
         {
-            // optimized for single-zone case
+            // optimised for single-zone case
             zoneIds_ = 0;
         }
         else
diff --git a/src/surfMesh/UnsortedMeshedSurface/UnsortedMeshedSurface.H b/src/surfMesh/UnsortedMeshedSurface/UnsortedMeshedSurface.H
index f8ad390b35..17861d3398 100644
--- a/src/surfMesh/UnsortedMeshedSurface/UnsortedMeshedSurface.H
+++ b/src/surfMesh/UnsortedMeshedSurface/UnsortedMeshedSurface.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -35,7 +35,7 @@ Description
     to adjust the zone information (eg, surface refinement).
 
 See also
-    The Foam::MeshedSurface - which is organized as a surface mesh, but
+    The Foam::MeshedSurface - which is organised as a surface mesh, but
     with independent zone information.
 
 SourceFiles
diff --git a/src/surfMesh/surfFields/surfFields/surfGeoMesh.H b/src/surfMesh/surfFields/surfFields/surfGeoMesh.H
index 51b168461b..7dfab96739 100644
--- a/src/surfMesh/surfFields/surfFields/surfGeoMesh.H
+++ b/src/surfMesh/surfFields/surfFields/surfGeoMesh.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -27,7 +27,7 @@ Class
 Description
     The surfMesh GeoMesh (for holding fields).
 
-    Similar to the volGeoMesh used for the Finite Volume discretization.
+    Similar to the volGeoMesh used for the Finite Volume discretisation.
 
 \*---------------------------------------------------------------------------*/
 
diff --git a/src/surfMesh/surfaceFormats/ac3d/AC3DsurfaceFormat.H b/src/surfMesh/surfaceFormats/ac3d/AC3DsurfaceFormat.H
index c08eb8f5f5..84829e031a 100644
--- a/src/surfMesh/surfaceFormats/ac3d/AC3DsurfaceFormat.H
+++ b/src/surfMesh/surfaceFormats/ac3d/AC3DsurfaceFormat.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -30,7 +30,7 @@ Description
     http://www.inivis.com/ac3d/man/ac3dfileformat.html
 
 Note
-    On input, the faces are already organized as zones.
+    On input, the faces are already organised as zones.
     The output is always sorted by zones.
     In the absence of zones, a single zone will be assigned.
 
diff --git a/src/surfMesh/surfaceFormats/nas/NASsurfaceFormat.C b/src/surfMesh/surfaceFormats/nas/NASsurfaceFormat.C
index d401d6cc14..aa89b38b07 100644
--- a/src/surfMesh/surfaceFormats/nas/NASsurfaceFormat.C
+++ b/src/surfMesh/surfaceFormats/nas/NASsurfaceFormat.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -81,7 +81,7 @@ bool Foam::fileFormats::NASsurfaceFormat<Face>::read
     label ansaId = -1;
     word  ansaType, ansaName;
 
-    // A single warning per unrecognized command
+    // A single warning per unrecognised command
     HashSet<word> unhandledCmd;
 
     while (is.good())
diff --git a/src/surfMesh/surfaceFormats/x3d/X3DsurfaceFormat.C b/src/surfMesh/surfaceFormats/x3d/X3DsurfaceFormat.C
index 5f9910160f..520e04e002 100644
--- a/src/surfMesh/surfaceFormats/x3d/X3DsurfaceFormat.C
+++ b/src/surfMesh/surfaceFormats/x3d/X3DsurfaceFormat.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -78,7 +78,7 @@ void Foam::fileFormats::X3DsurfaceFormat<Face>::write
     writeAppearance(os);
 
 
-    // NOTE: we could provide an optimized IndexedTriangleSet output for
+    // NOTE: we could provide an optimised IndexedTriangleSet output for
     // triangulated surfaces too
 
     os  <<
diff --git a/src/thermophysicalModels/chemistryModel/chemistryModel/TDACChemistryModel/reduction/DRGEP/DRGEP.H b/src/thermophysicalModels/chemistryModel/chemistryModel/TDACChemistryModel/reduction/DRGEP/DRGEP.H
index 9aa15eef2a..ebc23def91 100644
--- a/src/thermophysicalModels/chemistryModel/chemistryModel/TDACChemistryModel/reduction/DRGEP/DRGEP.H
+++ b/src/thermophysicalModels/chemistryModel/chemistryModel/TDACChemistryModel/reduction/DRGEP/DRGEP.H
@@ -79,7 +79,7 @@ Description
     When this coefficient alpha is below the specified threshold, the species is
     removed from the search initiating set. In the original paper from
     Pepiot-Desjardins et al.[2], this coefficient is further transformed to
-    compute a global normalized scaling coefficient but here as it is
+    compute a global normalised scaling coefficient but here as it is
     dynamically computed, alpha is not introduced in the calculation of R.
 
     References:
diff --git a/src/thermophysicalModels/chemistryModel/chemistryModel/TDACChemistryModel/tabulation/ISAT/ISAT.H b/src/thermophysicalModels/chemistryModel/chemistryModel/TDACChemistryModel/tabulation/ISAT/ISAT.H
index 9a98c9a1f1..5cf5a62b26 100644
--- a/src/thermophysicalModels/chemistryModel/chemistryModel/TDACChemistryModel/tabulation/ISAT/ISAT.H
+++ b/src/thermophysicalModels/chemistryModel/chemistryModel/TDACChemistryModel/tabulation/ISAT/ISAT.H
@@ -61,7 +61,7 @@ class ISAT
 {
     // Private Data
 
-        //- List of the stored 'points' organized in a binary tree
+        //- List of the stored 'points' organised in a binary tree
         binaryTree<ThermoType> chemisTree_;
 
         //- List of scale factors for species, temperature and pressure
diff --git a/src/thermophysicalModels/chemistryModel/chemistryModel/TDACChemistryModel/tabulation/ISAT/chemPointISAT/chemPointISAT.C b/src/thermophysicalModels/chemistryModel/chemistryModel/TDACChemistryModel/tabulation/ISAT/chemPointISAT/chemPointISAT.C
index 05139e1a08..88b99dc4bb 100644
--- a/src/thermophysicalModels/chemistryModel/chemistryModel/TDACChemistryModel/tabulation/ISAT/chemPointISAT/chemPointISAT.C
+++ b/src/thermophysicalModels/chemistryModel/chemistryModel/TDACChemistryModel/tabulation/ISAT/chemPointISAT/chemPointISAT.C
@@ -293,7 +293,7 @@ Foam::chemPointISAT<ThermoType>::chemPointISAT
     }
 
     // The object LT_ (the transpose of the Q) describe the EOA, since we have
-    // A^T B^T B A that should be factorized into L Q^T Q L^T and is set in the
+    // A^T B^T B A that should be factorised into L Q^T Q L^T and is set in the
     // qrDecompose function
     LT_ = scalarSquareMatrix(Atilde);
 
diff --git a/src/thermophysicalModels/reactionThermo/mixtures/basicCombustionMixture/basicCombustionMixture.H b/src/thermophysicalModels/reactionThermo/mixtures/basicCombustionMixture/basicCombustionMixture.H
index 91ad95a2d8..fce24769c3 100644
--- a/src/thermophysicalModels/reactionThermo/mixtures/basicCombustionMixture/basicCombustionMixture.H
+++ b/src/thermophysicalModels/reactionThermo/mixtures/basicCombustionMixture/basicCombustionMixture.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::basicCombustionMixture
 
 Description
-    Specialization of the basicMixture for combustion.
+    Specialisation of the basicMixture for combustion.
 
 SourceFiles
     basicCombustionMixture.C
diff --git a/src/thermophysicalModels/reactionThermo/mixtures/basicSpecieMixture/basicSpecieMixture.H b/src/thermophysicalModels/reactionThermo/mixtures/basicSpecieMixture/basicSpecieMixture.H
index 11ab5d1ad5..bc57824431 100644
--- a/src/thermophysicalModels/reactionThermo/mixtures/basicSpecieMixture/basicSpecieMixture.H
+++ b/src/thermophysicalModels/reactionThermo/mixtures/basicSpecieMixture/basicSpecieMixture.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2014-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2014-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -25,7 +25,7 @@ Class
     Foam::basicSpecieMixture
 
 Description
-    Specialization of basicMixture for a mixture consisting of a number for
+    Specialisation of basicMixture for a mixture consisting of a number for
     molecular species.
 
 SourceFiles
diff --git a/src/transportModels/viscosityModels/Casson/Casson.H b/src/transportModels/viscosityModels/Casson/Casson.H
index 36d248e0b7..776e1e5842 100644
--- a/src/transportModels/viscosityModels/Casson/Casson.H
+++ b/src/transportModels/viscosityModels/Casson/Casson.H
@@ -31,7 +31,7 @@ Description
     \verbatim
         Casson, N. (1959).
         Rheology of disperse systems.
-        In Proceedings of a Conference Organized by the
+        In Proceedings of a Conference Organised by the
         British Society of Rheology.
         Pergamon Press, New York.
 
diff --git a/src/triSurface/faceTriangulation/faceTriangulation.C b/src/triSurface/faceTriangulation/faceTriangulation.C
index 8814f1cb00..f25df15c13 100644
--- a/src/triSurface/faceTriangulation/faceTriangulation.C
+++ b/src/triSurface/faceTriangulation/faceTriangulation.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -46,7 +46,7 @@ Foam::label Foam::faceTriangulation::left(const label size, label i)
 }
 
 
-// Calculate (normalized) edge vectors.
+// Calculate (normalised) edge vectors.
 // edges[i] gives edge between point i+1 and i.
 Foam::tmp<Foam::vectorField> Foam::faceTriangulation::calcEdges
 (
@@ -207,8 +207,8 @@ void Foam::faceTriangulation::findDiagonal
         cosHalfAngle*rightE
       + sinHalfAngle*(normal ^ rightE)
     );
-    // rayDir should be normalized already but is not due to rounding errors
-    // so normalize.
+    // rayDir should be normalised already but is not due to rounding errors
+    // so normalise.
     rayDir /= mag(rayDir) + vSmall;
 
 
@@ -284,7 +284,7 @@ void Foam::faceTriangulation::findDiagonal
         return;
     }
 
-    // Select visible vertex that minimizes
+    // Select visible vertex that minimises
     // angle to bisection. Visibility checking by checking if inside triangle
     // formed by startIndex, leftIndex, rightIndex
 
diff --git a/src/triSurface/faceTriangulation/faceTriangulation.H b/src/triSurface/faceTriangulation/faceTriangulation.H
index b54dab4fb0..09bfd1618e 100644
--- a/src/triSurface/faceTriangulation/faceTriangulation.H
+++ b/src/triSurface/faceTriangulation/faceTriangulation.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -81,7 +81,7 @@ class faceTriangulation
         //- Edge to the left of face vertex i
         static label left(const label size, label i);
 
-        //- Calculate normalized edge vectors
+        //- Calculate normalised edge vectors
         static tmp<vectorField> calcEdges(const face&, const pointField&);
 
         //- Calculates half angle components of angle from e0 to e1
diff --git a/src/triSurface/tools/labelledTri/labelledTri.H b/src/triSurface/tools/labelledTri/labelledTri.H
index 5331f24530..b1ed7c3663 100644
--- a/src/triSurface/tools/labelledTri/labelledTri.H
+++ b/src/triSurface/tools/labelledTri/labelledTri.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -124,7 +124,7 @@ template<>
 inline bool contiguous<labelledTri>()  {return true;}
 
 
-//- Hash specialization to offset faces in ListListOps::combineOffset
+//- Hash specialisation to offset faces in ListListOps::combineOffset
 template<>
 class offsetOp<labelledTri>
 {
diff --git a/src/triSurface/triSurface/interfaces/NAS/readNAS.C b/src/triSurface/triSurface/interfaces/NAS/readNAS.C
index b0f608c650..a788e8fb43 100644
--- a/src/triSurface/triSurface/interfaces/NAS/readNAS.C
+++ b/src/triSurface/triSurface/interfaces/NAS/readNAS.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2019 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -99,7 +99,7 @@ bool triSurface::readNAS(const fileName& fName)
     word ansaType;
     string ansaName;
 
-    // A single warning per unrecognized command
+    // A single warning per unrecognised command
     HashSet<word> unhandledCmd;
 
     while (is.good())
diff --git a/src/triSurface/triSurface/triSurface.C b/src/triSurface/triSurface/triSurface.C
index d2338675b3..313f4144f9 100644
--- a/src/triSurface/triSurface/triSurface.C
+++ b/src/triSurface/triSurface/triSurface.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2020 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -1197,7 +1197,7 @@ Foam::tmp<Foam::scalarField> Foam::triSurface::curvature() const
         }
 
         triad faceCoordSys(e0, e1, eN);
-        faceCoordSys.normalize();
+        faceCoordSys.normalise();
 
         // Construct the matrix to solve
         scalarSymmetricSquareMatrix T(3, 0);
diff --git a/src/triSurface/triSurfaceFields/triSurfaceGeoMesh.H b/src/triSurface/triSurfaceFields/triSurfaceGeoMesh.H
index 37e22b6a78..d713d32936 100644
--- a/src/triSurface/triSurfaceFields/triSurfaceGeoMesh.H
+++ b/src/triSurface/triSurfaceFields/triSurfaceGeoMesh.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -27,7 +27,7 @@ Class
 Description
     The triSurface GeoMesh (for holding fields).
 
-    Similar to the volGeoMesh used for the Finite Volume discretization.
+    Similar to the volGeoMesh used for the Finite Volume discretisation.
 
 \*---------------------------------------------------------------------------*/
 
diff --git a/src/triSurface/triSurfaceFields/triSurfacePointGeoMesh.H b/src/triSurface/triSurfaceFields/triSurfacePointGeoMesh.H
index 9174843402..ebea8e065f 100644
--- a/src/triSurface/triSurfaceFields/triSurfacePointGeoMesh.H
+++ b/src/triSurface/triSurfaceFields/triSurfacePointGeoMesh.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -27,7 +27,7 @@ Class
 Description
     The triSurface  point GeoMesh (for holding vertex fields).
 
-    Similar to the volMesh used for the Finite Volume discretization.
+    Similar to the volMesh used for the Finite Volume discretisation.
 
 \*---------------------------------------------------------------------------*/
 
diff --git a/test/multiphase/multiphaseEulerFoam/populationBalance/simultaneousCoalescenceAndBreakup/system/controlDict b/test/multiphase/multiphaseEulerFoam/populationBalance/simultaneousCoalescenceAndBreakup/system/controlDict
index e2b79bfb69..43c9ab6af0 100644
--- a/test/multiphase/multiphaseEulerFoam/populationBalance/simultaneousCoalescenceAndBreakup/system/controlDict
+++ b/test/multiphase/multiphaseEulerFoam/populationBalance/simultaneousCoalescenceAndBreakup/system/controlDict
@@ -64,7 +64,7 @@ functions
         populationBalance   bubbles;
         functionType        number;
         coordinateType      diameter;
-        normalize           yes;
+        normalise           yes;
         densityFunction     yes;
     }
 
@@ -79,7 +79,7 @@ functions
         populationBalance   bubbles;
         functionType        volume;
         coordinateType      diameter;
-        normalize           yes;
+        normalise           yes;
         densityFunction     yes;
     }
 }
diff --git a/tutorials/combustion/reactingFoam/Lagrangian/aachenBomb/constant/cloudProperties b/tutorials/combustion/reactingFoam/Lagrangian/aachenBomb/constant/cloudProperties
index fbf341666c..d50061b63a 100644
--- a/tutorials/combustion/reactingFoam/Lagrangian/aachenBomb/constant/cloudProperties
+++ b/tutorials/combustion/reactingFoam/Lagrangian/aachenBomb/constant/cloudProperties
@@ -160,7 +160,7 @@ subModels
 
     surfaceFilmModel none;
 
-    atomizationModel none;
+    atomisationModel none;
 
     breakupModel    ReitzDiwakar; // ReitzKHRT;
 
diff --git a/tutorials/heatTransfer/buoyantPimpleFoam/BernardCells/system/streamlines b/tutorials/heatTransfer/buoyantPimpleFoam/BernardCells/system/streamlines
index a7437f81d3..a8c59600c0 100644
--- a/tutorials/heatTransfer/buoyantPimpleFoam/BernardCells/system/streamlines
+++ b/tutorials/heatTransfer/buoyantPimpleFoam/BernardCells/system/streamlines
@@ -23,6 +23,6 @@ seedSampleSet
 
 fields          (U);
 
-#includeEtc "caseDicts/postProcessing/visualization/streamlines.cfg"
+#includeEtc "caseDicts/postProcessing/visualisation/streamlines.cfg"
 
 // ************************************************************************* //
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/U b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/U
similarity index 100%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/U
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/U
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/Ua b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/Ua
similarity index 100%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/Ua
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/Ua
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/epsilon b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/epsilon
similarity index 100%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/epsilon
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/epsilon
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/k b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/k
similarity index 100%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/k
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/k
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/nut b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/nut
similarity index 100%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/nut
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/nut
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/p b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/p
similarity index 100%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/p
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/p
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/pa b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/pa
similarity index 100%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/0/pa
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/0/pa
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/Allrun b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/Allrun
similarity index 100%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/Allrun
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/Allrun
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/constant/momentumTransport b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/constant/momentumTransport
similarity index 100%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/constant/momentumTransport
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/constant/momentumTransport
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/constant/transportProperties b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/constant/transportProperties
similarity index 100%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/constant/transportProperties
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/constant/transportProperties
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/system/controlDict b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/system/controlDict
similarity index 95%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/system/controlDict
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/system/controlDict
index 0e17c951c7..367f9219f1 100644
--- a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/system/controlDict
+++ b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/system/controlDict
@@ -15,7 +15,7 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-application     adjointShapeOptimizationFoam;
+application     adjointShapeOptimisationFoam;
 
 startFrom       startTime;
 
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/system/fvSchemes b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/system/fvSchemes
similarity index 100%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/system/fvSchemes
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/system/fvSchemes
diff --git a/tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/system/fvSolution b/tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/system/fvSolution
similarity index 100%
rename from tutorials/incompressible/adjointShapeOptimizationFoam/pitzDaily/system/fvSolution
rename to tutorials/incompressible/adjointShapeOptimisationFoam/pitzDaily/system/fvSolution
diff --git a/tutorials/incompressible/boundaryFoam/boundaryWallFunctionsProfile/foamLog.db b/tutorials/incompressible/boundaryFoam/boundaryWallFunctionsProfile/foamLog.db
index dafe0166cc..a6a557dff4 100644
--- a/tutorials/incompressible/boundaryFoam/boundaryWallFunctionsProfile/foamLog.db
+++ b/tutorials/incompressible/boundaryFoam/boundaryWallFunctionsProfile/foamLog.db
@@ -15,7 +15,7 @@
 #
 #------------------------------------------------------------------------------
 
-#- String to recognize new iteration by (usually same as 'Time')
+#- String to recognise new iteration by (usually same as 'Time')
 Separator/^[ \t]*Time = /Time =
 
 #- Time value:
diff --git a/tutorials/incompressible/pimpleFoam/laminar/offsetCylinder/constant/momentumTransport b/tutorials/incompressible/pimpleFoam/laminar/offsetCylinder/constant/momentumTransport
index 5aea4a727f..6e56c95c7c 100644
--- a/tutorials/incompressible/pimpleFoam/laminar/offsetCylinder/constant/momentumTransport
+++ b/tutorials/incompressible/pimpleFoam/laminar/offsetCylinder/constant/momentumTransport
@@ -18,7 +18,7 @@ simulationType laminar;
 
 laminar
 {
-    model        generalizedNewtonian;
+    model        generalisedNewtonian;
 
     viscosityModel CrossPowerLaw;
 
diff --git a/tutorials/incompressible/simpleFoam/drivaerFastback/system/car b/tutorials/incompressible/simpleFoam/drivaerFastback/system/car
index c5af6c7bf3..8fadf09561 100644
--- a/tutorials/incompressible/simpleFoam/drivaerFastback/system/car
+++ b/tutorials/incompressible/simpleFoam/drivaerFastback/system/car
@@ -14,7 +14,7 @@ Description
 
 \*---------------------------------------------------------------------------*/
 
-#includeEtc "caseDicts/postProcessing/visualization/surfaces.cfg"
+#includeEtc "caseDicts/postProcessing/visualisation/surfaces.cfg"
 
 fields  (p);
 
diff --git a/tutorials/incompressible/simpleFoam/drivaerFastback/system/slices b/tutorials/incompressible/simpleFoam/drivaerFastback/system/slices
index 1bb8ad6b47..d7f3de9a47 100644
--- a/tutorials/incompressible/simpleFoam/drivaerFastback/system/slices
+++ b/tutorials/incompressible/simpleFoam/drivaerFastback/system/slices
@@ -14,7 +14,7 @@ Description
 
 \*---------------------------------------------------------------------------*/
 
-#includeEtc "caseDicts/postProcessing/visualization/surfaces.cfg"
+#includeEtc "caseDicts/postProcessing/visualisation/surfaces.cfg"
 
 fields  (p U);
 
diff --git a/tutorials/incompressible/simpleFoam/drivaerFastback/system/streamlines b/tutorials/incompressible/simpleFoam/drivaerFastback/system/streamlines
index ddf4fd1fc4..2e63c41805 100644
--- a/tutorials/incompressible/simpleFoam/drivaerFastback/system/streamlines
+++ b/tutorials/incompressible/simpleFoam/drivaerFastback/system/streamlines
@@ -10,7 +10,7 @@ Description
 
 \*---------------------------------------------------------------------------*/
 
-#includeEtc "caseDicts/postProcessing/visualization/streamlines.cfg"
+#includeEtc "caseDicts/postProcessing/visualisation/streamlines.cfg"
 
 fields  (U);
 
diff --git a/tutorials/incompressible/simpleFoam/pitzDaily/system/streamlines b/tutorials/incompressible/simpleFoam/pitzDaily/system/streamlines
index b8ede68bac..dc125c73e7 100644
--- a/tutorials/incompressible/simpleFoam/pitzDaily/system/streamlines
+++ b/tutorials/incompressible/simpleFoam/pitzDaily/system/streamlines
@@ -23,6 +23,6 @@ seedSampleSet
 
 fields          (p k U);
 
-#includeEtc "caseDicts/postProcessing/visualization/streamlines.cfg"
+#includeEtc "caseDicts/postProcessing/visualisation/streamlines.cfg"
 
 // ************************************************************************* //
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/climbingRod/constant/fvModels b/tutorials/multiphase/compressibleInterFoam/laminar/climbingRod/constant/fvModels
index 20f29ccf07..fbbf2bde17 100644
--- a/tutorials/multiphase/compressibleInterFoam/laminar/climbingRod/constant/fvModels
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/climbingRod/constant/fvModels
@@ -15,9 +15,9 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-stabilization
+stabilisation
 {
-    type            phaseLimitStabilization;
+    type            phaseLimitStabilisation;
 
     field           sigma.liquid;
     rate            rLambda.liquid;
diff --git a/tutorials/multiphase/multiphaseEulerFoam/RAS/bubblePipe/system/controlDict b/tutorials/multiphase/multiphaseEulerFoam/RAS/bubblePipe/system/controlDict
index 2118231bd2..5309937879 100644
--- a/tutorials/multiphase/multiphaseEulerFoam/RAS/bubblePipe/system/controlDict
+++ b/tutorials/multiphase/multiphaseEulerFoam/RAS/bubblePipe/system/controlDict
@@ -73,7 +73,7 @@ functions
         functionType        volume;
         coordinateType      diameter;
         densityFunction     yes;
-        normalize           yes;
+        normalise           yes;
     }
 
     probabilityDensity.outlet
@@ -90,7 +90,7 @@ functions
         functionType        volume;
         coordinateType      diameter;
         densityFunction     yes;
-        normalize           yes;
+        normalise           yes;
     }
 }
 
diff --git a/tutorials/multiphase/multiphaseEulerFoam/laminar/titaniaSynthesis/system/controlDict b/tutorials/multiphase/multiphaseEulerFoam/laminar/titaniaSynthesis/system/controlDict
index 8bd5a97219..a4bc94ea81 100644
--- a/tutorials/multiphase/multiphaseEulerFoam/laminar/titaniaSynthesis/system/controlDict
+++ b/tutorials/multiphase/multiphaseEulerFoam/laminar/titaniaSynthesis/system/controlDict
@@ -71,7 +71,7 @@ functions
         functionType        number;
         coordinateType      projectedAreaDiameter;
         densityFunction     yes;
-        normalize           yes;
+        normalise           yes;
         geometric           yes;
     }
 
diff --git a/tutorials/multiphase/multiphaseEulerFoam/laminar/titaniaSynthesisSurface/system/controlDict b/tutorials/multiphase/multiphaseEulerFoam/laminar/titaniaSynthesisSurface/system/controlDict
index c90b13746d..7dd113b553 100644
--- a/tutorials/multiphase/multiphaseEulerFoam/laminar/titaniaSynthesisSurface/system/controlDict
+++ b/tutorials/multiphase/multiphaseEulerFoam/laminar/titaniaSynthesisSurface/system/controlDict
@@ -71,7 +71,7 @@ functions
         functionType        number;
         coordinateType      projectedAreaDiameter;
         densityFunction     yes;
-        normalize           yes;
+        normalise           yes;
         geometric           yes;
     }
 
diff --git a/wmake/src/Makefile b/wmake/src/Makefile
index 46f4c607fe..a0d87a84e7 100644
--- a/wmake/src/Makefile
+++ b/wmake/src/Makefile
@@ -2,7 +2,7 @@
 # =========                 |
 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
 #  \\    /   O peration     | Website:  https://openfoam.org
-#   \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+#   \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
 #    \\/     M anipulation  |
 #------------------------------------------------------------------------------
 # License
@@ -46,7 +46,7 @@ SHELL      = /bin/sh
 # Set compilation and dependency building rules
 #------------------------------------------------------------------------------
 
-# Locally set optimized compilation
+# Locally set optimised compilation
 WM_COMPILE_OPTION = Opt
 
 GENERAL_RULES   = $(WM_DIR)/rules/General
diff --git a/wmake/wmakeLnIncludeAll b/wmake/wmakeLnIncludeAll
index 551e9d51dc..6a119d259e 100755
--- a/wmake/wmakeLnIncludeAll
+++ b/wmake/wmakeLnIncludeAll
@@ -3,7 +3,7 @@
 # =========                 |
 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
 #  \\    /   O peration     | Website:  https://openfoam.org
-#   \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
+#   \\  /    A nd           | Copyright (C) 2011-2021 OpenFOAM Foundation
 #    \\/     M anipulation  |
 #------------------------------------------------------------------------------
 # License
@@ -199,7 +199,7 @@ else
         # Wait for all of the wmakeLnInclude jobs to finish
         wait
 
-        # Synchronize the file system to ensure that all of the links exist
+        # Synchronise the file system to ensure that all of the links exist
         # before compilation
         # sync
         sleep 3