/ Thesaurus / O Synonyms of overt operation Find synonyms for: Noun1. overt operation, intelligence, intelligence activity, intelligence operationusage: the collection of intelligence openly without concealmentWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language