Click the Office button
Then click Word Options.
Then click Proofing.
Click Custom Dictionaries.
Select the check box next to CUSTOM.DIC.
Click the Dictionary language list arrow.
Then select a language for a dictionary.
Click Edit Word List to add, delete, or edit words.
Click Change Default to select a new default dictionary.
Click New to create a new dictionary.
Click Add to insert an existing dictionary.
Click Remove to delete a dictionary.