/ Thesaurus / C Synonyms of certificate of deposit Find synonyms for: Noun1. certificate of deposit, CD, debt instrument, obligation, certificate of indebtednessusage: a debt instrument issued by a bank; usually pays interestWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: quandary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language