/ Thesaurus / C Synonyms of crack down Find synonyms for: Noun1. crackdown, suppression, crushing, quelling, stiflingusage: severely repressive actionsVerb1. clamp down, crack down, restrict, restrain, trammel, limit, bound, confine, throttleusage: repress or suppress (something regarded as undesirable); "The police clamped down on illegal drugs"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: devout Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language