Breadcrumb Home > Thesaurus Cite Synonyms of tuba Find synonyms for: Noun1. bass horn, sousaphone, tuba, brass, brass instrument, bassusage: the lowest brass wind instrumentWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.See also: tuba (Dictionary) Related Content Daily Word Quiz: erpsichore Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language Synonyms Index