/ Thesaurus / K Synonyms of klamath river Find synonyms for: Noun1. Klamath, Klamath Riverusage: a river flowing southwest from Oregon through northern California to the Pacific OceanWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: aversion Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language