/ Thesaurus / O Synonyms of onion roll Find synonyms for: Noun1. onion roll, bun, rollusage: yeast-raised roll flavored with onionWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language