/ Thesaurus / O Synonyms of output signal Find synonyms for: Noun1. output signal, output, signal, signaling, signusage: signal that comes out of an electronic systemWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language