/ Thesaurus / C Synonyms of charter member Find synonyms for: Noun1. charter member, member, fellow memberusage: one of the original members when an organization was foundedWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: contemplate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language