/ Thesaurus / S Synonyms of soda niter Find synonyms for: Noun1. sodium nitrate, soda niter, nitrateusage: (NaNO3) used especially as a fertilizer and explosiveWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: laudable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language