pacificist vs doer

pacificist and doer both are nouns.

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

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

Other hypernyms of pacificist include actor, worker.

pacificist (noun)	doer (noun)
someone opposed to violence as a means of settling disputes	a person who acts and gets things done