/ Thesaurus / C Synonyms of cactus euphorbia Find synonyms for: Noun1. naboom, cactus euphorbia, Euphorbia ingens, spurgeusage: small tree of dry open parts of southern Africa having erect angled branches suggesting candelabraWordNet 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