/ Thesaurus / C Synonyms of cockleburr 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: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language