isolationist vs exponent

isolationist and exponent both are nouns.

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

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

Other hypernyms of isolationist include advocate, advocator, proponent.

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

isolationist (adjective)	exponent (adjective)
of or relating to isolationism