Three ways you can add or remove words from Microsoft Word dictionary. Applies to other Office apps like Excel, PowerPoint, Outlook too.

If you want to add a Custom Dictionary in Microsoft Word, Excel, Outlook, or other Office apps, here is what you will have to do.

Avoid adding hyphenated words and words containing fancy characters. Save custom.dic as a text file; then close and relaunch Word to start using the updated dictionary. 7.