centrist vs doer

centrist and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
centrist	Yes	Yes	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of centrist; that is, doer is a word with a broader meaning than centrist:

Other hypernyms of centrist include actor, worker.

centrist (noun)	doer (noun)
a person who takes a position in the political center	a person who acts and gets things done

centrist (adjective)	doer (adjective)
supporting or pursuing a course of action that is neither liberal nor conservative