unilateralist vs advocate

unilateralist and advocate both are nouns.

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

As nouns, advocate is a hypernym of unilateralist; that is, advocate is a word with a broader meaning than unilateralist:

Other hypernyms of unilateralist include advocator, exponent, proponent.

unilateralist (noun)	advocate (noun)
an advocate of unilateralism	a person who pleads for a cause or propounds an idea
	a lawyer who pleads cases in court

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