/ Thesaurus / S Synonyms of signals intelligence Find synonyms for: Noun1. signals intelligence, SIGINT, intelligence, intelligence activity, intelligence operationusage: intelligence information gathered from communications intelligence or electronics intelligence or telemetry intelligenceWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language