/ Thesaurus / C Synonyms of certificate of incorporation Find synonyms for: Noun1. certificate of incorporation, certificate, certification, credential, credentialsusage: state approval of the articles of incorporation of a corporationWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: mongrel Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language