Type that is shifted above the normal baseline of text is called superscript, and it displays as text that is half the height of a character above the normal line of type. Conversely, subscript type appears as half the height of a character below the normal line. The main uses for superscript formatting are trademark and copyright symbols, ordinal numbers such as 1st, 2nd and 3rd, footnotes, citations, writing chemical compounds, mathematical expressions and algebraic formulas.
Applying Superscript Formatting
The keyboard shortcut method to apply superscript in Word 2013 is "Control-Shift -+" to toggle superscript on and off.
The Font dialog box also has controls for superscript formatting. Clicking on the arrow at the bottom right corner of the Font group in the Home tab, selecting the "Superscript" check box and then clicking the "OK" button to close the dialog box activates superscript type. Returning to the Font dialog box, removing the check mark and clicking the "OK" button deactivates superscript formatting.
Another way to implement superscript text is to click on the “x2” button in the Font group of the Home tab; this button toggles superscript on and off. Superscript formatting can be applied by turning superscript on just before typing the text and then off again just after typing it. Superscript can be applied to existing text by highlighting the text with the cursor then activating superscript by using one of the methods described here.