Final answer:
Superscript is text that appears slightly above the line of other text in a document, distinguishing it from italics, strikethrough, and subscript formatting.
Step-by-step explanation:
Text that appears slightly above the line of the other text in a document is known as superscript. This formatting style is commonly used for footnotes, endnotes, and mathematical expressions like exponents. For example, in math the notation for 'squared' is shown as a number with a small 2 above it to the right, as in 52, demonstrating the use of superscript.
Unlike italics which are used for emphasis, book titles, and stage directions; or strikethrough which indicates deleted text; superscript is specifically for text that needs to stand out but remain above the base line of other text. Text that appears slightly above the line of the other text in the document is superscript. The way stage directions are written is visually different from the dialogue. Usually, they are italicized and separated from the dialogue.