â phrasal verb with run uk / rÊn / us verb running, ran, run âº to finish, use, or sell all of something, so that there is none left: run out of sth We are about to run out of paper and toner. The order for more forms should be placed before we run out. âº if a supply of something runs out, all of it has been used or it is completely finished:
muzzle. 1  the mouth, or end for discharge, of the barrel of a gun, pistol, etc. 2  the projecting part of the head of an animal, including jaws, mouth, and nose. 3  a device, usually an arrangement of straps or wires, placed over an animal's mouth to prevent the animal from biting, eating, etc.
A gun is a normally tubular weapon or other device designed to discharge projectiles or other material. The projectile may be solid, liquid, gas or energy and may be free, as with bullets and artillery shells, or captive as with Taser probes and whaling harpoons.