opener vs actor

opener and actor both are nouns.

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

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

Other hypernyms of opener include doer, worker.

opener (noun)	actor (noun)
a hand tool used for opening sealed containers (bottles or cans)	a theatrical performer
the first event in a series	a person who acts and gets things done
a person who unfastens or unwraps or opens