any weapon that discharges a bullet or shell through a metal tube; a firearm
My, my. Such a lot of guns around town and so few brains — Humphrey Bogart
a piece of artillery with a high muzzle velocity and a comparatively flat trajectory
a discharge of a gun; gunfire
somebody who carries a gun in a shooting party
NAmer somebody who is skilled with a gun, esp a hired killer
a device that releases a controlled amount of something, e.g. grease or glue, and is operated broadly like a firearm
go great guns
to be working at great speed or very effectively
jump the gun
to start in a race before the starting signal
to move or act before the proper time
stick to one's guns
to refuse to change one's decision, intentions, or opinion in spite of opposition
gunned adj
[Middle English gonne, gunne, prob of Scandinavian origin]