/ Thesaurus / Q Synonyms of quercus nigra Find synonyms for: Noun1. water oak, possum oak, Quercus nigra, oak, oak treeusage: relatively tall deciduous water oak of southeastern United States often cultivated as a shade tree; thrives in wet soilWordNet 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