spousal equivalent vs doer

spousal equivalent and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
spousal equivalent	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of spousal equivalent; that is, doer is a word with a broader meaning than spousal equivalent:

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

Other hypernyms of spousal equivalent include actor, worker.

spousal equivalent (noun)	doer (noun)
a person (not necessarily a spouse) with whom you cohabit and share a long-term sexual relationship	a person who acts and gets things done