Breadcrumb Home > Thesaurus > C Synonyms of cockle burr Find synonyms for: Noun1. cocklebur, cockle-bur, cockleburr, cockle-burr, weedusage: any coarse weed of the genus Xanthium having spiny burrsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: rococo Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language