If you're looking for an interactive check box that you can click on to check or uncheck, see Make a checklist in Word. As a result it's important to use the right font to find the symbol or character you want. For example, the Elephant font has no fraction characters in it, while Verdana does. Not all fonts have the same characters in them.
The most important thing to understand when inserting symbols, fractions, special characters, or international characters is that the font you use is critical. You can easily insert a special character, fraction, or other symbol in your Word documents.