You can add a superscript or subscript in Word using the appropriate buttons in the Font section of the Home ribbon, or through a keyboard shortcut.

Press "Ctrl-+" in Microsoft Word on a PC or a Mac to enter subscript mode. Use the keypad to type the numbers you want to display in subscript and press "Ctrl-+" again when done to return to ...

Learn how to add superscript and subscript buttons to the toolbars in Word, PowerPoint, and Excel in both Office 2004 and 2008.

When you compose a document and need either a subscript or a superscript – the little numbers you put beside words to indicate a footnote or by numbers for exponents – Microsoft Word gives you ...

Users have two efficient methods for applying superscript and subscript fonts. They can use a keyboard shortcut or add the effect to the Quick Access toolbar.