/ Thesaurus / A Synonyms of acoustic modem Find synonyms for: Noun1. acoustic modem, modemusage: a modem that converts electrical signals to telephone tones and back againWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language