/ Thesaurus / L Synonyms of lehigh river Find synonyms for: Noun1. Lehigh Riverusage: a river in eastern Pennsylvania that flows southeast into the Delaware RiverWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language