superscript

2. A symbol or number printed above and to the right of another symbol to show a power or index.

The superscript 3 in 2³ tells you to multiply 2 by itself three times.

3. A small number or letter placed above the normal line of text, often used to mark a footnote.

The superscript 1 after the word points to the first footnote.

4. Written or printed above the normal line of text.

The trademark symbol is often shown as a superscript mark.

5. A character set slightly above the baseline in mathematical or chemical notation.

Chemists write ions with a superscript charge, like Na⁺.