/ Thesaurus / B Synonyms of better half Find synonyms for: Noun1. spouse, partner, married person, mate, better half, relative, relation, domestic partner, significant other, spousal equivalent, spouse equivalentusage: a person's partner in marriageWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language