/ Thesaurus / B Synonyms of blank check Find synonyms for: Noun1. free hand, blank check, freedomusage: freedom to do as you see fit; "many have doubts about giving him a free hand to attack"2. blank check, blank cheque, check, bank check, chequeusage: a check that has been signed but with the amount payable left blankWordNet 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