exponent
Definitions
A symbol or number placed above and to the right of another symbol to denote the power to which the latter is to be raised.
A person who believes in and promotes the truth or benefits of an idea or theory.
A person who is an advocate, representative, or leading practitioner of a particular cause or activity.
Examples
In the mathematical expression 5 to the power of 3, the number 3 is the exponent.
She is a leading exponent of the new architectural movement that emphasizes sustainable design.
Synonyms
advocate proponent champion supporter representative power index