The feature that places text slightly above the normal line (e.g., in X²) is called:

Text formatting features allow for precise control over character appearance and positioning. The feature that places text slightly above the normal line, as seen in mathematical exponents like X², is called Superscript. Superscript raises the selected text above the baseline and often reduces its size, making it distinct from the surrounding text. It is commonly used for exponents, footnotes, or ordinal numbers (e.g., 1st, 2nd). In contrast, Subscript places text slightly below the baseline, typically used for chemical formulas (e.g., H₂O). Strikethrough draws a line through the middle of the text, indicating deletion or correction, but does not alter vertical positioning. Small Caps formats lowercase letters as smaller uppercase letters, affecting size and case but not vertical alignment. Thus, Superscript is the correct term for text positioned above the line.