socialist vs pol

socialist and pol both are nouns.

Word	Noun	Adjective	Verb	Adverb
socialist	Yes	Yes	No	No
pol	Yes	No	No	No

As nouns, pol is a hypernym of socialist; that is, pol is a word with a broader meaning than socialist:

Other hypernyms of socialist include political leader, politician, politico.

socialist (noun)	pol (noun)
a political advocate of socialism	a person active in party politics

socialist (adjective)	pol (adjective)
advocating or following the socialist principles