I. noun
a restraint imposed by social usage or as a protective measure
a society rife with antiquated moral taboos
Synonyms: ban, forbiddance, interdiction, prohibition, proscription
Related Word: inhibition, limitation, reservation, restraint, restriction; regulation, sanction; don't
Contrasted words: acceptance, toleration; approval, authorization, permission, permit, permittance
II. verb
Synonyms: forbid , ban, enjoin, inhibit, interdict, outlaw, prohibit