bedmate vs actor

bedmate and actor both are nouns.

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

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

Other hypernyms of bedmate include doer, worker.

bedmate (noun)	actor (noun)
a person with whom you share a bed	a theatrical performer
	a person who acts and gets things done