Breadcrumb Home > Thesaurus > O Synonyms of ouachita Find synonyms for: Noun 1. Ouachita, Ouachita River usage: a river that rises in western Arkansas and flows southeast into eastern Louisiana to become a tributary of the Red River WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of ouachita (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: tintinnabulation Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language