/ Thesaurus / T Synonyms of teton sioux Find synonyms for: Noun1. Teton, Lakota, Teton Sioux, Teton Dakota, Sioux, Siouanusage: a member of the large western branch of Sioux people which was made up of several groups that lived on the plainsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: ravenous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language