abstainer vs actor

abstainer and actor both are nouns.

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

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

Other hypernyms of abstainer include doer, worker.

abstainer (noun)	actor (noun)
a person who refrains from drinking intoxicating beverages	a theatrical performer
someone who practices self denial as a spiritual discipline	a person who acts and gets things done