Copied from the Help Menu in Word:
Add, delete, or edit words in a custom dictionary
1. On the Tools menu, click Options, and then click the Spelling & Grammar
tab.
2. Click Custom Dictionaries.
3. Select the dictionary you want to edit. Make sure you do not clear its
check box.
4. Click Modify.
5. Do one of the following:
o To add a word, type it in the Word box, and then click Add.
o To delete a word, select it in the Dictionary box, and then click Delete.
o To edit a word, delete it, and then add it with the spelling you want.
RIP
