How To Limit Spell Checking To The Main Dictionary Only In Word

When you run the spell checker in Word (or when Word checks your spelling as you type), the words in your document are compared against both the main dictionary and any custom dictionaries you may have opened. (The main dictionary is the one provided by Microsoft; custom dictionaries are those you create by adding your own words.) Sometimes you may not want Word to do this.
For instance, let's say that you have developed a rather extensive dictionary that is very specific to your industry or to your company. The dictionary may contain many specialized terms, but using those terms to spell-check a document you are preparing for your church or civic organization may be inappropriate. If you want to limit Word's spell checker so it only uses the main dictionary—not your custom ones—you can follow these steps:

    Choose Options from the Tools menu. Word displays the Options dialog box.
    Make sure the Spelling & Grammar tab is selected. (See Figure 1.)
    Figure 1. The Spelling & Grammar tab of the Options dialog box.
    Make sure the Suggest From Main Dictionary Only check box is selected.
    Click on OK.