1. noun
    a leather or wire restraint that fits over an animal``s snout (especially a dog``s nose and jaws) and prevents it from eating or biting
  2. noun
    the open circular discharging end of a gun
  3. noun
    forward projecting part of the head of certain animals; includes the jaws and nose
  4. noun
    restraint put into a person``s mouth to prevent speaking or shouting
  5. verb
    tie a gag around someone``s mouth in order to silence them; "The burglars gagged the home owner and tied him to a chair"
  6. verb
    prevent from speaking out; "The press was gagged"
  7. verb
    fit with a muzzle; "muzzle the dog to prevent it from biting strangers"