/ Thesaurus / M Synonyms of musical octave Find synonyms for: Noun1. octave, musical octave, interval, musical intervalusage: a musical interval of eight tonesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: boisterous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language