quitter vs actor

quitter and actor both are nouns.

Word	Noun	Adjective	Verb	Adverb
quitter	Yes	No	No	No
actor	Yes	No	No	No

As nouns, actor is a hypernym of quitter; that is, actor is a word with a broader meaning than quitter:

Other hypernyms of quitter include doer, worker.

quitter (noun)	actor (noun)
a person who gives up too easily	a theatrical performer
	a person who acts and gets things done