diff --git a/lib/editor/tiny/lang/en/editor_tiny.php b/lib/editor/tiny/lang/en/editor_tiny.php
index c56f604d74e..f19adca50a4 100644
--- a/lib/editor/tiny/lang/en/editor_tiny.php
+++ b/lib/editor/tiny/lang/en/editor_tiny.php
@@ -43,7 +43,7 @@ $string['tiny:activity'] = 'Activity';
 $string['tiny:address'] = 'Address';
 $string['tiny:advanced'] = 'Advanced';
 $string['tiny:align'] = 'Align';
-$string['tiny:align_center'] = 'Align center';
+$string['tiny:align_center'] = 'Align centre';
 $string['tiny:align_left'] = 'Align left';
 $string['tiny:align_right'] = 'Align right';
 $string['tiny:alignment'] = 'Alignment';
@@ -55,22 +55,22 @@ $string['tiny:alternative_source_url'] = 'Alternative source URL';
 $string['tiny:anchor'] = 'Anchor';
 $string['tiny:anchor...'] = 'Anchor...';
 $string['tiny:anchors'] = 'Anchors';
-$string['tiny:animals_and_nature'] = 'Animals and Nature';
+$string['tiny:animals_and_nature'] = 'Animals and nature';
 $string['tiny:arrows'] = 'Arrows';
 $string['tiny:b'] = 'B';
-$string['tiny:background_color'] = 'Background color';
-$string['tiny:background_color_0'] = 'Background color {0}';
+$string['tiny:background_color'] = 'Background colour';
+$string['tiny:background_color_0'] = 'Background colour {0}';
 $string['tiny:black'] = 'Black';
 $string['tiny:block'] = 'Block';
 $string['tiny:block_0'] = 'Block {0}';
 $string['tiny:blockquote'] = 'Blockquote';
-$string['tiny:blocks'] = 'Blocks';
+$string['tiny:blocks'] = 'Paragraph styles';
 $string['tiny:blue'] = 'Blue';
 $string['tiny:blue_component'] = 'Blue component';
 $string['tiny:body'] = 'Body';
 $string['tiny:bold'] = 'Bold';
 $string['tiny:border'] = 'Border';
-$string['tiny:border_color'] = 'Border color';
+$string['tiny:border_color'] = 'Border colour';
 $string['tiny:border_style'] = 'Border style';
 $string['tiny:border_width'] = 'Border width';
 $string['tiny:bottom'] = 'Bottom';
@@ -86,7 +86,7 @@ $string['tiny:cell_properties'] = 'Cell properties';
 $string['tiny:cell_spacing'] = 'Cell spacing';
 $string['tiny:cell_styles'] = 'Cell styles';
 $string['tiny:cell_type'] = 'Cell type';
-$string['tiny:center'] = 'Center';
+$string['tiny:center'] = 'Centre';
 $string['tiny:characters'] = 'Characters';
 $string['tiny:characters_no_spaces'] = 'Characters (no spaces)';
 $string['tiny:circle'] = 'Circle';
@@ -96,8 +96,8 @@ $string['tiny:close'] = 'Close';
 $string['tiny:code'] = 'Code';
 $string['tiny:code_sample...'] = 'Code sample...';
 $string['tiny:code_view'] = 'Code view';
-$string['tiny:color_picker'] = 'Color Picker';
-$string['tiny:color_swatch'] = 'Color swatch';
+$string['tiny:color_picker'] = 'Colour picker';
+$string['tiny:color_swatch'] = 'Colour swatch';
 $string['tiny:cols'] = 'Cols';
 $string['tiny:column'] = 'Column';
 $string['tiny:column_clipboard_actions'] = 'Column clipboard actions';
@@ -112,19 +112,19 @@ $string['tiny:could_not_load_emojis'] = 'Could not load emojis';
 $string['tiny:count'] = 'Count';
 $string['tiny:currency'] = 'Currency';
 $string['tiny:current_window'] = 'Current window';
-$string['tiny:custom_color'] = 'Custom color';
+$string['tiny:custom_color'] = 'Custom colour';
 $string['tiny:custom...'] = 'Custom...';
 $string['tiny:cut'] = 'Cut';
 $string['tiny:cut_column'] = 'Cut column';
 $string['tiny:cut_row'] = 'Cut row';
-$string['tiny:dark_blue'] = 'Dark Blue';
-$string['tiny:dark_gray'] = 'Dark Gray';
-$string['tiny:dark_green'] = 'Dark Green';
-$string['tiny:dark_orange'] = 'Dark Orange';
-$string['tiny:dark_purple'] = 'Dark Purple';
-$string['tiny:dark_red'] = 'Dark Red';
-$string['tiny:dark_turquoise'] = 'Dark Turquoise';
-$string['tiny:dark_yellow'] = 'Dark Yellow';
+$string['tiny:dark_blue'] = 'Dark blue';
+$string['tiny:dark_gray'] = 'Dark grey';
+$string['tiny:dark_green'] = 'Dark green';
+$string['tiny:dark_orange'] = 'Dark orange';
+$string['tiny:dark_purple'] = 'Dark purple';
+$string['tiny:dark_red'] = 'Dark red';
+$string['tiny:dark_turquoise'] = 'Dark turquoise';
+$string['tiny:dark_yellow'] = 'Dark yellow';
 $string['tiny:dashed'] = 'Dashed';
 $string['tiny:datetime'] = 'Date/time';
 $string['tiny:decrease_indent'] = 'Decrease indent';
@@ -155,8 +155,8 @@ $string['tiny:failed_to_load_plugin_0_from_url_1'] = 'Failed to load plugin: {0}
 $string['tiny:failed_to_upload_image_0'] = 'Failed to upload image: {0}';
 $string['tiny:file'] = 'File';
 $string['tiny:find'] = 'Find';
-$string['tiny:find_and_replace'] = 'Find and Replace';
-$string['tiny:find_if_searchreplace_plugin_activated'] = 'Find (if searchreplace plugin activated)';
+$string['tiny:find_and_replace'] = 'Find and replace';
+$string['tiny:find_if_searchreplace_plugin_activated'] = 'Find (if search and replace plugin activated)';
 $string['tiny:find_and_replace...'] = 'Find and replace...';
 $string['tiny:find_in_selection'] = 'Find in selection';
 $string['tiny:find_whole_words_only'] = 'Find whole words only';
@@ -170,7 +170,7 @@ $string['tiny:font_size_0'] = 'Font size {0}';
 $string['tiny:font_sizes'] = 'Font sizes';
 $string['tiny:font_0'] = 'Font {0}';
 $string['tiny:fonts'] = 'Fonts';
-$string['tiny:food_and_drink'] = 'Food and Drink';
+$string['tiny:food_and_drink'] = 'Food and drink';
 $string['tiny:footer'] = 'Footer';
 $string['tiny:format'] = 'Format';
 $string['tiny:format_0'] = 'Format {0}';
@@ -178,11 +178,11 @@ $string['tiny:formats'] = 'Formats';
 $string['tiny:fullscreen'] = 'Fullscreen';
 $string['tiny:g'] = 'G';
 $string['tiny:general'] = 'General';
-$string['tiny:gray'] = 'Gray';
+$string['tiny:gray'] = 'Grey';
 $string['tiny:green'] = 'Green';
 $string['tiny:green_component'] = 'Green component';
 $string['tiny:groove'] = 'Groove';
-$string['tiny:handy_shortcuts'] = 'Handy Shortcuts';
+$string['tiny:handy_shortcuts'] = 'Handy shortcuts';
 $string['tiny:header'] = 'Header';
 $string['tiny:header_cell'] = 'Header cell';
 $string['tiny:heading_1'] = 'Heading 1';
@@ -194,7 +194,7 @@ $string['tiny:heading_6'] = 'Heading 6';
 $string['tiny:headings'] = 'Headings';
 $string['tiny:height'] = 'Height';
 $string['tiny:help'] = 'Help';
-$string['tiny:hex_color_code'] = 'Hex color code';
+$string['tiny:hex_color_code'] = 'Hex colour code';
 $string['tiny:hidden'] = 'Hidden';
 $string['tiny:horizontal_align'] = 'Horizontal align';
 $string['tiny:horizontal_line'] = 'Horizontal line';
@@ -212,7 +212,7 @@ $string['tiny:imageproxy_http_error_unknown_imageproxy_error'] = 'ImageProxy HTT
 $string['tiny:increase_indent'] = 'Increase indent';
 $string['tiny:inline'] = 'Inline';
 $string['tiny:insert'] = 'Insert';
-$string['tiny:insert_template'] = 'Insert Template';
+$string['tiny:insert_template'] = 'Insert template';
 $string['tiny:insert_accordion'] = 'Insert accordion';
 $string['tiny:insert_column_after'] = 'Insert column after';
 $string['tiny:insert_column_before'] = 'Insert column before';
@@ -224,31 +224,31 @@ $string['tiny:insert_row_before'] = 'Insert row before';
 $string['tiny:insert_table'] = 'Insert table';
 $string['tiny:insert_template...'] = 'Insert template...';
 $string['tiny:insert_video'] = 'Insert video';
-$string['tiny:insertedit_code_sample'] = 'Insert/Edit code sample';
+$string['tiny:insertedit_code_sample'] = 'Insert/edit code sample';
 $string['tiny:insertedit_image'] = 'Insert/edit image';
 $string['tiny:insertedit_link'] = 'Insert/edit link';
 $string['tiny:insertedit_media'] = 'Insert/edit media';
 $string['tiny:insertedit_video'] = 'Insert/edit video';
 $string['tiny:inset'] = 'Inset';
-$string['tiny:invalid_hex_color_code_0'] = 'Invalid hex color code: {0}';
+$string['tiny:invalid_hex_color_code_0'] = 'Invalid hex colour code: {0}';
 $string['tiny:invalid_input'] = 'Invalid input';
 $string['tiny:italic'] = 'Italic';
 $string['tiny:justify'] = 'Justify';
-$string['tiny:keyboard_navigation'] = 'Keyboard Navigation';
+$string['tiny:keyboard_navigation'] = 'Keyboard navigation';
 $string['tiny:language'] = 'Language';
 $string['tiny:learn_more...'] = 'Learn more...';
 $string['tiny:left'] = 'Left';
 $string['tiny:left_to_right'] = 'Left to right';
-$string['tiny:light_blue'] = 'Light Blue';
-$string['tiny:light_gray'] = 'Light Gray';
-$string['tiny:light_green'] = 'Light Green';
-$string['tiny:light_purple'] = 'Light Purple';
-$string['tiny:light_red'] = 'Light Red';
-$string['tiny:light_yellow'] = 'Light Yellow';
+$string['tiny:light_blue'] = 'Light blue';
+$string['tiny:light_gray'] = 'Light grey';
+$string['tiny:light_green'] = 'Light green';
+$string['tiny:light_purple'] = 'Light purple';
+$string['tiny:light_red'] = 'Light red';
+$string['tiny:light_yellow'] = 'Light yellow';
 $string['tiny:line_height'] = 'Line height';
 $string['tiny:link_list'] = 'Link list';
 $string['tiny:link...'] = 'Link...';
-$string['tiny:list_properties'] = 'List Properties';
+$string['tiny:list_properties'] = 'List properties';
 $string['tiny:list_properties...'] = 'List properties...';
 $string['tiny:loading_emojis...'] = 'Loading emojis...';
 $string['tiny:loading...'] = 'Loading...';
@@ -259,21 +259,21 @@ $string['tiny:match_case'] = 'Match case';
 $string['tiny:mathematical'] = 'Mathematical';
 $string['tiny:media_poster_image_url'] = 'Media poster (Image URL)';
 $string['tiny:media...'] = 'Media...';
-$string['tiny:medium_blue'] = 'Medium Blue';
-$string['tiny:medium_gray'] = 'Medium Gray';
-$string['tiny:medium_purple'] = 'Medium Purple';
+$string['tiny:medium_blue'] = 'Medium blue';
+$string['tiny:medium_gray'] = 'Medium grey';
+$string['tiny:medium_purple'] = 'Medium purple';
 $string['tiny:merge_cells'] = 'Merge cells';
 $string['tiny:middle'] = 'Middle';
-$string['tiny:midnight_blue'] = 'Midnight Blue';
+$string['tiny:midnight_blue'] = 'Midnight blue';
 $string['tiny:more...'] = 'More...';
 $string['tiny:name'] = 'Name';
-$string['tiny:navy_blue'] = 'Navy Blue';
+$string['tiny:navy_blue'] = 'Navy blue';
 $string['tiny:new_document'] = 'New document';
 $string['tiny:new_window'] = 'New window';
 $string['tiny:next'] = 'Next';
 $string['tiny:no'] = 'No';
 $string['tiny:no_alignment'] = 'No alignment';
-$string['tiny:no_color'] = 'No color';
+$string['tiny:no_color'] = 'No colour';
 $string['tiny:nonbreaking_space'] = 'Nonbreaking space';
 $string['tiny:none'] = 'None';
 $string['tiny:numbered_list'] = 'Numbered list';
@@ -320,7 +320,7 @@ $string['tiny:red'] = 'Red';
 $string['tiny:red_component'] = 'Red component';
 $string['tiny:redo'] = 'Redo';
 $string['tiny:remove'] = 'Remove';
-$string['tiny:remove_color'] = 'Remove color';
+$string['tiny:remove_color'] = 'Remove colour';
 $string['tiny:remove_link'] = 'Remove link';
 $string['tiny:replace'] = 'Replace';
 $string['tiny:replace_all'] = 'Replace all';
@@ -328,9 +328,9 @@ $string['tiny:replace_with'] = 'Replace with';
 $string['tiny:resize'] = 'Resize';
 $string['tiny:restore_last_draft'] = 'Restore last draft';
 $string['tiny:reveal_or_hide_additional_toolbar_items'] = 'Reveal or hide additional toolbar items';
-$string['tiny:rich_text_area'] = 'Rich Text Area';
-$string['tiny:rich_text_area._press_alt-0_for_help.'] = 'Rich Text Area. Press ALT-0 for help.';
-$string['tiny:rich_text_area._press_alt-f9_for_menu._press_alt-f10_for_toolbar._press_alt-0_for_hel'] = 'Rich Text Area. Press ALT-F9 for menu. Press ALT-F10 for toolbar. Press ALT-0 for help';
+$string['tiny:rich_text_area'] = 'Rich text area';
+$string['tiny:rich_text_area._press_alt-0_for_help.'] = 'Rich text area. Press ALT-0 for help.';
+$string['tiny:rich_text_area._press_alt-f9_for_menu._press_alt-f10_for_toolbar._press_alt-0_for_hel'] = 'Rich text area. Press ALT-F9 for menu. Press ALT-F10 for toolbar. Press ALT-0 for help.';
 $string['tiny:ridge'] = 'Ridge';
 $string['tiny:right'] = 'Right';
 $string['tiny:right_to_left'] = 'Right to left';
@@ -349,14 +349,14 @@ $string['tiny:select_all'] = 'Select all';
 $string['tiny:select...'] = 'Select...';
 $string['tiny:selection'] = 'Selection';
 $string['tiny:shortcut'] = 'Shortcut';
-$string['tiny:show_blocks'] = 'Show blocks';
+$string['tiny:show_blocks'] = 'Show paragraph styles';
 $string['tiny:show_caption'] = 'Show caption';
 $string['tiny:show_invisible_characters'] = 'Show invisible characters';
 $string['tiny:size'] = 'Size';
 $string['tiny:solid'] = 'Solid';
 $string['tiny:source'] = 'Source';
 $string['tiny:source_code'] = 'Source code';
-$string['tiny:special_character'] = 'Special Character';
+$string['tiny:special_character'] = 'Special character';
 $string['tiny:special_character...'] = 'Special character...';
 $string['tiny:split_cell'] = 'Split cell';
 $string['tiny:square'] = 'Square';
@@ -367,7 +367,7 @@ $string['tiny:subscript'] = 'Subscript';
 $string['tiny:superscript'] = 'Superscript';
 $string['tiny:switch_to_or_from_fullscreen_mode'] = 'Switch to or from fullscreen mode';
 $string['tiny:symbols'] = 'Symbols';
-$string['tiny:system_font'] = 'System Font';
+$string['tiny:system_font'] = 'System font';
 $string['tiny:table'] = 'Table';
 $string['tiny:table_caption'] = 'Table caption';
 $string['tiny:table_properties'] = 'Table properties';
@@ -375,7 +375,7 @@ $string['tiny:table_styles'] = 'Table styles';
 $string['tiny:template'] = 'Template';
 $string['tiny:templates'] = 'Templates';
 $string['tiny:text'] = 'Text';
-$string['tiny:text_color'] = 'Text color';
+$string['tiny:text_color'] = 'Text colour';
 $string['tiny:text_color_0'] = 'Text color {0}';
 $string['tiny:text_to_display'] = 'Text to display';
 $string['tiny:the_url_you_entered_seems_to_be_an_email_address._do_you_want_to_add_the_required_mai'] = 'The URL you entered seems to be an email address. Do you want to add the required mailto: prefix?';
@@ -386,7 +386,7 @@ $string['tiny:to_open_the_popup_press_shiftenter'] = 'To open the popup, press S
 $string['tiny:toggle_accordion'] = 'Toggle accordion';
 $string['tiny:tools'] = 'Tools';
 $string['tiny:top'] = 'Top';
-$string['tiny:travel_and_places'] = 'Travel and Places';
+$string['tiny:travel_and_places'] = 'Travel and places';
 $string['tiny:turquoise'] = 'Turquoise';
 $string['tiny:underline'] = 'Underline';
 $string['tiny:undo'] = 'Undo';
@@ -395,7 +395,7 @@ $string['tiny:uploading_image'] = 'Uploading image';
 $string['tiny:upper_alpha'] = 'Upper Alpha';
 $string['tiny:upper_roman'] = 'Upper Roman';
 $string['tiny:url'] = 'Url';
-$string['tiny:user_defined'] = 'User Defined';
+$string['tiny:user_defined'] = 'User defined';
 $string['tiny:valid'] = 'Valid';
 $string['tiny:version'] = 'Version';
 $string['tiny:vertical_align'] = 'Vertical align';
@@ -411,7 +411,7 @@ $string['tiny:words_0'] = 'Words: {0}';
 $string['tiny:yellow'] = 'Yellow';
 $string['tiny:yes'] = 'Yes';
 $string['tiny:you_are_using_0'] = 'You are using {0}';
-$string['tiny:you_have_unsaved_changes_are_you_sure_you_want_to_navigate_away'] = 'You have unsaved changes are you sure you want to navigate away?';
+$string['tiny:you_have_unsaved_changes_are_you_sure_you_want_to_navigate_away'] = 'You have unsaved changes. Are you sure you want to navigate away?';
 $string['tiny:your_browser_doesnt_support_direct_access_to_the_clipboard._please_use_the_ctrlxcv_ke'] = 'Your browser doesn\'t support direct access to the clipboard. Please use the Ctrl+X/C/V keyboard shortcuts instead.';
 $string['tiny:alignment1'] = 'alignment';
 $string['tiny:austral_sign'] = 'austral sign';
diff --git a/lib/editor/tiny/readme_moodle.md b/lib/editor/tiny/readme_moodle.md
index 5037b2ba5ed..01c0d89e134 100644
--- a/lib/editor/tiny/readme_moodle.md
+++ b/lib/editor/tiny/readme_moodle.md
@@ -102,15 +102,19 @@ sed -i "/string\['tiny:/d" "${MOODLEDIR}/lang/en/editor_tiny.php"
 cat strings.php >> "${MOODLEDIR}/lang/en/editor_tiny.php"
  ```
 
-7. Commit changes. Note: You may need to review individual language changes which do not meet Moodle's guidelines.
-8. If required, the remaining language strings can be fed into AMOS.
+7. Review the changes to the language strings file carefully. You may need to:
+
+    * Edit new strings so they meet [Moodle's guidelines for language strings](https://moodledev.io/general/development/policies/codingstyle#language-strings).
+    * Revert changes to any Moodle-updated language strings that were fixed for spelling, grammar, and consistency in past releases to meet Moodle's guidelines. For example, from the [`en_fix` issues](https://tracker.moodle.org/issues/?jql=summary%20~%20%22en_fix%22%20order%20by%20createdDate%20desc). Review the `git` history of the language strings file to verify.
+
+8. Commit the changes.
+
+9. If required, the remaining language strings can be fed into AMOS.
 
 ---
 
 **Note:** A set of language files are also generated for all supported translations and may be submitted to AMOS if desired.
 
-**Note:** You will need to manually check for any Moodle-updated language strings as part of this change (for example any from the en_fixes).
-
 ---
 
 ## Security fix procedure for TinyMCE Editor