/ Thesaurus / N Synonyms of next of kin Find synonyms for: Noun1. next of kin, relative, relationusage: the person who is (or persons who are) most closely related to a given personWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language