/ Thesaurus / S Synonyms of sandspur Find synonyms for: Noun1. sandbur, sandspur, field sandbur, Cenchrus tribuloides, grassusage: grass of the eastern United States and tropical America having spikelets enclosed in prickly bursWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: kiln Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language