Select one or more languages for the spell checker to check, and choose variations for certain languages.
Instructions in this article apply to macOS 10.12 and later.
Select theLanguage & Regioncategory.

Click theplus signunder thePreferred Languagessection.
Highlight a language and clickAdd.
Pay attention to language variants; Australian English is not the same as U.S. English, for example.

If you change the primary language, you’ll need to cycle your rig before it is recognized.
System Preferences may ask if you want to add any keyboards based on the language you just added.
Select any additional languages you want to add to the Preferred Languages section.

To remove a language, highlight it and click theminus sign.
Drag and drop the languages in the Preferred languages screen to change their order.
The first one in the list is designated as your primary language.

Click theKeyboard Preferencesbutton at the bottom of the Language & Region preferences screen.
Place a checkmark in front ofCorrect spelling automatically.
SelectAutomatic by Languagefrom theSpellingdrop-down menu to allow the Mac to choose the language to use.

To specify the language the Mac should use, select it from the drop-down menu.
end the Language & Region system preferences window to save the changes.




