exponent vs actor

exponent and actor both are nouns.

Word	Noun	Adjective	Verb	Adverb
exponent	Yes	No	No	No
actor	Yes	No	No	No

As nouns, actor is a hypernym of exponent; that is, actor is a word with a broader meaning than exponent:

Other hypernyms of exponent include doer, worker.

exponent (noun)	actor (noun)
a mathematical notation indicating the number of times a quantity is multiplied by itself	a theatrical performer
a person who pleads for a cause or propounds an idea	a person who acts and gets things done
someone who expounds and interprets or explains