muzzle

Noun
  1. The open circular discharging end of a gun (synset 103474810)
  2. Forward projecting part of the head of certain animals;
    Includes the jaws and nose (synset 102455095)
  3. 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 (synset 103808824)
  4. Restraint put into a person's mouth to prevent speaking or shouting (synset 103415650)
Verb
  1. Fit with a muzzle (synset 202345893)
    "muzzle the dog to prevent it from biting strangers"
  2. Prevent from speaking out (synset 202195389)
    "The press was gagged"
  3. Tie a gag around someone's mouth in order to silence them (synset 201287286)
    "The burglars gagged the home owner and tied him to a chair"

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