excuser vs actor

excuser and actor both are nouns.

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

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

Other hypernyms of excuser include doer, worker.

excuser (noun)	actor (noun)
a person who pardons or forgives or excuses a fault or offense	a theatrical performer
	a person who acts and gets things done