advocate vs exponent

advocate and exponent both are nouns.

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

As nouns, advocate and exponent are synonyms defined as:

advocate and exponent: a person who pleads for a cause or propounds an idea

Other synonyms of advocate include advocator, proponent.

advocate (noun)	exponent (noun)
a person who pleads for a cause or propounds an idea	a mathematical notation indicating the number of times a quantity is multiplied by itself
a lawyer who pleads cases in court	a person who pleads for a cause or propounds an idea
	someone who expounds and interprets or explains

advocate (verb)	exponent (verb)
push for something
speak, plead, or argue in favor of