You may prefer to use this method if you want to make other formatting changes to the text as well, such as changing the font style, size or color.

Subscript and superscript can also be added via the Font dialog box. Simply highlight the text that you want to turn into subscript or superscript, and click the appropriate button. There are subscript and superscript buttons on the ribbon under Home | Font. Or the harder way is to select just the ‘ th ’, ‘ nd ’, ‘ st ’ or ‘ rd ’ and uncheck the superscript button on the ribbon. If it’s a long time later and Undo isn’t available, select the number and text then press Ctrl + Space. The AutoFormatting is a separate ‘do’ in Word that is revers able, as y ou can see from the Undo list. If you don’t want the super script in individual cases, press Ctrl + Z (Undo). This little bit of Word magic happens with an AutoFormat setting at File | Options | Proofing | AutoCorrect options | AutoFormat. Type a date or ordinal value like 1st, 2nd, 3rd, 4th, 55th etc and Word will change the following letters (‘st’ ‘nd’, ‘rd’ or ‘th’) to superscript automatically. You’ve probably already seen this in Word. There are four ways to implement this in Word:

H 2O), but can also be used for something as simple as a date or other ordinal number (e.g. This kind of text is commonly used in mathematics (e.g. You can add text that appears smaller and slightly below (subscript) or above (superscript) your main text quite easily in Word.

Subscript in microsoft word equation