diff --git a/packages/edit-site/src/components/global-styles/font-library-modal/library-font-variant.js b/packages/edit-site/src/components/global-styles/font-library-modal/library-font-variant.js
index 94fee2852478ef..0d84b9fbcb5aed 100644
--- a/packages/edit-site/src/components/global-styles/font-library-modal/library-font-variant.js
+++ b/packages/edit-site/src/components/global-styles/font-library-modal/library-font-variant.js
@@ -20,7 +20,7 @@ function LibraryFontVariant( { face, font } ) {
 	const { isFontActivated, toggleActivateFont } =
 		useContext( FontLibraryContext );
 
-	const isIstalled =
+	const isInstalled =
 		font?.fontFace?.length > 0
 			? isFontActivated(
 					font.slug,
@@ -52,7 +52,7 @@ function LibraryFontVariant( { face, font } ) {
 			<Flex justify="space-between" align="center" gap="1rem">
 				<FontFaceDemo fontFace={ face } text={ displayName } />
 				<CheckboxControl
-					checked={ isIstalled }
+					checked={ isInstalled }
 					onChange={ handleToggleActivation }
 					__nextHasNoMarginBottom={ true }
 					id={ checkboxId }
diff --git a/phpunit/tests/fonts/font-library/wpFontCollection/__construct.php b/phpunit/tests/fonts/font-library/wpFontCollection/__construct.php
index 8e9cf7bca08e5e..d4b75038a6e7ac 100644
--- a/phpunit/tests/fonts/font-library/wpFontCollection/__construct.php
+++ b/phpunit/tests/fonts/font-library/wpFontCollection/__construct.php
@@ -51,11 +51,11 @@ public function test_should_initialize_data() {
 	}
 
 	/**
-	 * @dataProvider data_should_do_ti_wrong
+	 * @dataProvider data_should_do_it_wrong
 	 *
 	 * @param mixed  $config Config of the font collection.
 	 */
-	public function test_should_do_ti_wrong( $config ) {
+	public function test_should_do_it_wrong( $config ) {
 		$this->setExpectedIncorrectUsage( 'WP_Font_Collection::is_config_valid' );
 		new WP_Font_Collection( $config );
 	}
@@ -65,7 +65,7 @@ public function test_should_do_ti_wrong( $config ) {
 	 *
 	 * @return array
 	 */
-	public function data_should_do_ti_wrong() {
+	public function data_should_do_it_wrong() {
 		return array(
 			'no id'                           => array(
 				array(
diff --git a/phpunit/tests/fonts/font-library/wpFontCollection/isConfigValid.php b/phpunit/tests/fonts/font-library/wpFontCollection/isConfigValid.php
index 7cfdfc829ab863..9179db9db10a8a 100644
--- a/phpunit/tests/fonts/font-library/wpFontCollection/isConfigValid.php
+++ b/phpunit/tests/fonts/font-library/wpFontCollection/isConfigValid.php
@@ -44,16 +44,16 @@ public function data_is_config_valid() {
 	}
 
 	/**
-	 * @dataProvider data_is_config_valid_should_call_doing_ti_wrong
+	 * @dataProvider data_is_config_valid_should_call_doing_it_wrong
 	 *
 	 * @param mixed  $config Config of the font collection.
 	 */
-	public function test_is_config_valid_should_call_doing_ti_wrong( $config ) {
+	public function test_is_config_valid_should_call_doing_it_wrong( $config ) {
 		$this->setExpectedIncorrectUsage( 'WP_Font_Collection::is_config_valid', 'Should call _doing_it_wrong if the config is not valid.' );
 		$this->assertFalse( WP_Font_Collection::is_config_valid( $config ), 'Should return false if the config is not valid.' );
 	}
 
-	public function data_is_config_valid_should_call_doing_ti_wrong() {
+	public function data_is_config_valid_should_call_doing_it_wrong() {
 		return array(
 			'with missing slug'               => array(
 				'config' => array(