Use a custom dictionary to add words to the spelling checker

When you use the spelling checker, it compares the words in your document with those in the main dictionary. The main dictionary contains the most common words, but it might not include proper names, technical terms, or acronyms. In addition, some words might be capitalized differently in the main dictionary than in your file. Adding such words or capitalization to a custom dictionary prevents the spelling checker from flagging them as mistakes. You can create additional custom dictionaries to complement the default dictionary that is included with the Office for Mac applications. A custom dictionary is useful if, for example, your work relies on a particular terminology, such as legal terms. Alternatively, you could create a custom dictionary that includes the names of your work contacts so that you know you're always spelling their names correctly.

Note  Any custom dictionary setting that you change in one Office for Mac application affects all the other applications. For example, you set many of the custom dictionary settings in Word, and then see the changes the next time you open PowerPoint or Excel.

Do any of the following:

Add a word from your document to a custom dictionary

Create a new custom dictionary in Word

Import a custom dictionary in Word

Add, delete, or edit words in a custom dictionary in Word

Change which custom dictionary to add new words to

Change the language that is associated with a custom dictionary