/ Thesaurus / I Synonyms of indorser Find synonyms for: Noun1. subscriber, endorser, indorser, ratifier, supporter, protagonist, champion, admirer, booster, friendusage: someone who expresses strong approval2. endorser, indorser, signer, signatoryusage: a person who transfers his ownership interest in something by signing a check or negotiable securityWordNet 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