If you want to use different language settings in different parts of the document, simply selected the text you want to modify. To do this quickly, use ‘Ctrl + A’ (or ‘command + A’ on Mac). In this post, we explain how to change the language of a document in Microsoft Word. But otherwise you might need to make a change. This is fine if you’re writing for an American (or even international) audience. Most word processors, including Microsoft Word, are automatically set to US spelling. Likewise, if you’re in the UK and writing for an international audience, you should make sure to adapt your language use accordingly. If you are writing an essay at a UK university, chances are you will have to write in British English.
How to Change the Language of a Microsoft Word Document