The Oxford Thesaurus An A-Z Dictionary of Synonyms - ban v.

1) prohibit, forbid, outlaw, proscribe, interdict, bar, disallow, debar: They have banned smoking in all public places. --n. 2) prohibition, taboo, proscription, interdiction, interdict; embargo, boycott: They have put a ban on the sale of alcoholic beverages. The ban against importing firearms is strictly enforced.