/ Thesaurus / S Synonyms of sandwich board Find synonyms for: Noun1. sandwich board, signboard, signusage: signboard consisting of two hinged boards that hang front and back from the shoulders of a walker and are used to display advertisementsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language