grunter vs actor

grunter and actor both are nouns.

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

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

Other hypernyms of grunter include doer, worker.

grunter (noun)	actor (noun)
domestic swine	a theatrical performer
a person who grunts	a person who acts and gets things done