/ Thesaurus / A Synonyms of ash tree Find synonyms for: Noun1. ash, ash tree, treeusage: any of various deciduous pinnate-leaved ornamental or timber trees of the genus FraxinusWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language