A gun is a hand-held weapon that fires bullets or shells. A hunter's gun looks very different from the gun carried in a holster by a police officer.Guns come in all shapes and sizes, but they are all dangerous weapons.

Most guns are designed to kill or injure, whether when hunting animals or used for self-defense. There are also starting guns, which make a loud noise to mark the start of a race; squirt guns, which fire streams of water; and paintball guns, used to shoot paint pellets during a paintball game. A so-called "hired gun" is a professional who's paid for their particular abilities. "Son of a gun" is an informal, fond way to refer to someone.

Definitions of gun

n a weapon that discharges a missile at high velocity (especially from a metal tube or barrel)

show 23 types...
hide 23 types...
air gun, air rifle, airgun
a gun that propels a projectile by compressed air
ack-ack, ack-ack gun, antiaircraft, antiaircraft gun, flack, flak, pom-pom
artillery designed to shoot upward at airplanes
a gun that is loaded at the breech
heavy automatic gun fired from an airplane
heavy gun fired from a tank
firearm, piece, small-arm
a portable gun
gas gun
a gun that fires gas shells
minute gun
(military) gun that is discharged once every minute (usually as part of a military funeral)
Quaker gun
a dummy gun or piece of artillery made usually of wood
set gun, spring gun
a gun that is set to fire on any intruder that comes in contact with the wire that sets it off
whaling gun
a gun (or device resembling a gun) for discharging a projectile (especially a harpoon) at a whale
autoloader, self-loader
a firearm that reloads itself
BB gun
an air gun in which BBs are propelled by compressed air
Bofors gun
an automatic double-barreled antiaircraft gun
muzzle loader
an obsolete firearm that was loaded through the muzzle
paintball gun
an air gun used in the game of paintball; designed to simulate a semiautomatic
handgun, pistol, shooting iron, side arm
a firearm that is held and fired with one hand
repeater, repeating firearm
a firearm that can fire several rounds without reloading
a shoulder firearm with a long barrel and a rifled bore
riot gun
a firearm designed to disperse rioters rather than to inflict serious injury or death
scattergun, shotgun
firearm that is a double-barreled smoothbore shoulder weapon for firing shot at short ranges
a firearm that has no rifling
.22, twenty-two
a .22 caliber firearm (pistol or rifle)
Type of:
arm, weapon, weapon system
any instrument or instrumentality used in fighting or hunting

n a hand-operated pump that resembles a revolver; forces grease into parts of a machine

Type of:
a mechanical device that moves fluid or gas by pressure or suction

n the discharge of a firearm as signal or as a salute in military ceremonies

“two runners started before the gun
“a twenty gun salute”
Type of:
discharge, firing, firing off
the act of discharging a gun

n a person who shoots a gun (as regards their ability)

Type of:
shooter, shot
a person who shoots (usually with respect to their ability to shoot)

n a professional killer who uses a gun

gun for hire, gunman, gunslinger, hired gun, hit man, hitman, shooter, torpedo, triggerman
Type of:
liquidator, manslayer, murderer
a criminal who commits homicide (who performs the unlawful premeditated killing of another human being)

n large but transportable armament

artillery, heavy weapon, ordnance
show 8 types...
hide 8 types...
a large artillery gun that is usually on wheels
field artillery, field gun
movable artillery (other than antiaircraft) used by armies in the field (especially for direct support of front-line troops)
an artillery gun that throws a shot weighing four pounds
ancient brass cannon
a heavy cannon with a long barrel used in the 16th and 17th centuries
harpoon gun
a cannon or similar gun that fires harpoons
high-angle gun
a cannon that can be fired at a high elevation for relatively short ranges
long tom
a long swivel cannon formerly used by the navy
Type of:
weaponry used by military or naval force

n a pedal that controls the throttle valve

accelerator, accelerator pedal, gas, gas pedal, throttle
Type of:
foot lever, foot pedal, pedal, treadle
a lever that is operated with the foot

v shoot with a gun

machine gun
shoot with a machine gun
Type of:
blast, shoot
fire a shot

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, can put you on the path to systematic vocabulary improvement.