groaner vs doer

groaner and doer both are nouns.

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

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

Other hypernyms of groaner include actor, worker.

groaner (noun)	doer (noun)
a person who groans	a person who acts and gets things done