domestic partner vs actor

domestic partner and actor both are nouns.

Word	Noun	Adjective	Verb	Adverb
domestic partner	Yes	No	No	No
actor	Yes	No	No	No

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

domestic partner: a person (not necessarily a spouse) with whom you cohabit and share a long-term sexual relationship
actor: a person who acts and gets things done

Other hypernyms of domestic partner include doer, worker.

domestic partner (noun)	actor (noun)
a person (not necessarily a spouse) with whom you cohabit and share a long-term sexual relationship	a theatrical performer
	a person who acts and gets things done