/ Thesaurus / F Synonyms of full faith and credit Find synonyms for: Noun1. full faith and credit, guaranteeusage: a guarantee to pay interest and principal on debt; usually issued by the United States TreasuryWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language