/ Thesaurus / P Synonyms of prunus nigra Find synonyms for: Noun1. Canada plum, Prunus nigra, plum, plum treeusage: small tree native to northeastern North America having oblong orange-red fruitWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language