There are several shortcuts that you can use to add symbols to a Word document. The Alt key on your keyboard can become your best friend if you frequently use specific Word symbols. To use the symbol's character code to insert it, press and hold the Alt key and type the character code. For example, the Alt key numeric code for the trademark symbol is 0153. Therefore, you would press and hold the Alt key and type 0153 using the numeric keypad on the right side of your keyboard. After you have typed each number in sequence, release the Alt key and the trademark symbol appears.

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To learn what the Alt key numeric code for a specific symbol, go to the Insert Symbol dialog box. Click on the symbol for which you want to find the code. Make sure Unicode is selected in the From box to the right of the Character Code box. The number in the Character Code box is the one you will want to remember.
If you need ever need shortcuts for typing accent marks in Microsoft Word, simply press and hold the Ctrl key along with the accent mark you want to use. Type the letter and the accent appears.
Another way to use shortcuts to insert Word symbols is to make your own. You can create your own keyboard shortcut in Word for any symbol. Open the Insert Symbol dialog box as listed in the previous section. Find and select the symbol for which you want to create a shortcut. Click the Shortcut Key button near the bottom of the dialog. Click inside the Press New Shortcut Key box and press the key combination you want to assign to the symbol. Check the Currently Assigned To box to determine whether the shortcut is assigned to another command. You can reassign the shortcut to the symbol if desired, but be aware that it will no longer work for its orignial purpose. Clic the Assign button to create your custom shortcut.
You can also find steps for creating other custom keyboard shortcuts in Little Known Microsoft Word Keyboard Tricks.