key in the text as you would normally, with no special formatting applied.

For example, to depict a formula that signifies water, typeH2O.

grab the text you want to appear as subscript so that it is highlighted.

Sample text for a subscript

In this example, go for the number2in H2O.

Go to theHometab and, in theFontgroup, selectSubscript, represented by the letterxand a depressed number2.

Alternatively, use a keyboard shortcut.

The Subscript button in Word

In Windows, pressCtrl+=(equal sign).

In macOS, pressCmd+=.

The selected characters appear in subscript format.

Text in Word with a subscript

Repeat these steps at any time to reverse the subscript formatting.

SelectMore Font Options, represented by three horizontally-aligned dots and located between theClear FormattingandBulletsbuttons on the main toolbar.

When the drop-down menu appears, selectSubscript.

Sample text for a subscript in Word Online

The More Font Options button in Word Online

The Subscript command

Sample text with a subscript applied