embargoEnglishOxford American Thesaurusembargo noun an embargo on oil sales: ban, bar, prohibition, stoppage, interdict, proscription, veto, moratorium; restriction, restraint, blockage, check, barrier, impediment, obstruction, hindrance; boycott.verb arms sales were embargoed: ban, bar, prohibit, stop, interdict, debar, proscribe, outlaw, make illegal; restrict, restrain, block, check, impede, obstruct, hinder; boycott, blacklist, ostracize. ▷antonyms allow.