/ Thesaurus / F Synonyms of first cousin Find synonyms for: Noun1. cousin, first cousin, cousin-german, full cousin, relative, relationusage: the child of your aunt or uncleWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language