/ Thesaurus / A Synonyms of acoustic spectrum Find synonyms for: Noun1. sound spectrum, acoustic spectrum, spectrumusage: the distribution of energy as a function of frequency for a particular sound sourceWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language