Customizing your Office Dictionary
Are there some correctly-spelled words (or names) Microsoft Word always flags as misspelled? You can easily add them to your custom dictionary.
1. Right-click any word that has a red, "squiggly" line under it (that's Word's way of flagging words as misspelled.)
2. Click "Add".
From now on, Word (and all other Office applications, like Excel and PowerPoint) will recognize that spelling of the word as being correct. (You may need to repeat the process to accommodate differences in capitalization.)