To prevent a word from being flagged by the spell checker, create an auxiliary dictionary and add the word to that auxiliary dictionary. To create an auxiliary dictionary, choose Utilities > Auxiliary Dictionary, enter a name, and then click New. To add words to an auxiliary dictionary, choose Utilities > Edit Auxiliary.

Only one auxiliary dictionary at a time can be open for use with an article. An auxiliary dictionary remains associated with an article until you click Close in the Auxiliary Dictionary dialog box or until you open a different auxiliary dictionary.

Auxiliary dictionaries are saved as separate files on your hard drive. The path to an article’s auxiliary dictionary is saved with the project, so if you move an open auxiliary dictionary to another folder or volume, the application will be unable to find it.

To create or open an auxiliary dictionary without closing the Check Spelling palette, click Add while a word you want to keep is highlighted.

To add all suspect words to an open auxiliary dictionary, press Option+Shift/Alt+Shift and click Add All.