/ Thesaurus / D Synonyms of domestic partner Find synonyms for: Noun1. domestic partner, significant other, spousal equivalent, spouse equivalent, person, individual, someone, somebody, mortal, soulusage: a person (not necessarily a spouse) with whom you cohabit and share a long-term sexual relationshipWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language