muzzle

The forward, projecting part of the head of certain animals, such as dogs, including the mouth, nose, and jaws; the snout.

A device that is fitted over an animal’s snout, often used to prevent biting or eating.

The forward, discharging end of the barrel of a firearm.

A restraint on free movement or expression.

To put a muzzle on (an animal).

To restrain from expression.

A workman’s name for a covering of many folds of flannel cloth tied over the nose and mouth of one who is engaged in removing bleaching-powder from the chambers in which it is made, and in packing it, to afford protection from the chlorin gas and the fine dust suspended in the air. A sponge moistened with water is sometimes used in the same way.

A chain clevis or shackle.

To bind or confine the mouth of in order to prevent biting or eating.

Figuratively, to gag; silence.