The Oxford Thesaurus An A-Z Dictionary of Synonyms - embargo n.

1) restraint, block, blockage, bar, ban, stoppage, cessation, proscription, prohibition, interdiction, check, restriction, barrier; hindrance, impediment: The government placed an embargo on the export of oil. --v. 2) restrain, block, bar, ban, stop, cease, proscribe, prohibit, interdict, check, restrict, hold back, prevent; hinder, impede, retard, hold up: They may embargo oil shipments in case of war.