nonreligious person vs doer

nonreligious person and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
nonreligious person	Yes	No	No	No
doer	Yes	No	No	No

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

Other hypernyms of nonreligious person include actor, worker.

nonreligious person (noun)	doer (noun)
a person who does not manifest devotion to a deity	a person who acts and gets things done