/ Thesaurus / A Synonyms of allegheny mountains Find synonyms for: Noun1. Alleghenies, Allegheny Mountainsusage: the western part of the Appalachian Mountains; extending from northern Pennsylvania to southwestern VirginiaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language