internationalist vs exponent

internationalist and exponent both are nouns.

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

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

Other hypernyms of internationalist include advocate, advocator, proponent.

internationalist (noun)	exponent (noun)
an advocate of internationalism	a mathematical notation indicating the number of times a quantity is multiplied by itself
a member of a socialist or communist international	a person who pleads for a cause or propounds an idea
	someone who expounds and interprets or explains

internationalist (adjective)	exponent (adjective)
influenced by or advocating internationalism