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.
Meaning projecting part of the head of an animal is from early 15c. in English; sense of open end of a firearm first recorded 1560s. v. to put a muzzle on, early 15c., from muzzle (n.).