biter vs actor

biter and actor both are nouns.

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

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

Other hypernyms of biter include doer, worker.

biter (noun)	actor (noun)
someone who bites	a theatrical performer
	a person who acts and gets things done