a weapon consisting of a metal tube, with mechanical attachments, from which projectiles are shot by the force of an explosive; a piece of ordnance.

any portable firearm, as a rifle, shotgun, or revolver.

a long-barreled cannon having a relatively flat trajectory.

any device for shooting something under pressure

a paint gun; a staple gun.

Slang . a person whose profession is killing; professional killer

a gangland gun.

British . a member of a shooting party.

electron gun.

to shoot with a gun (often fol. by down )

The guards gunned down the fleeing convict.

to cause (an engine, vehicle, aircraft, etc.) to increase in speed very quickly by increasing the supply of fuel.

to hunt with a gun.

to shoot with a gun. ?

gun for,

to seek with intent to harm or kill.

to seek; try earnestly to obtain

He is gunning for a raise.

give the gun

Slang . to put into motion or speed up

We gave the motor the gun and drove off.

jump the gun

Slang .

to begin a race before the starting signal.

to begin prematurely; act too hastily.

spike someone's guns

to frustrate or prevent someone from accomplishing a plan

Our competitors planned a surprise reduction in their rates, but we discovered it and were able to spike their guns.

stick to one's guns

to maintain one's position in the face of opposition; stand firm

They stuck to their guns and refused to submit. Also, stand by one's guns.

under the gun, under pressure

as to meet a deadline or solve a problem

We're all under the gun with these new sales quotas.

noun

9 mm. , blaster , cannon , difference * , equalizer , flintlock , forty-five , handgun , hardware * , howitzer , magnum , mortar , musket , ordnance , peashooter , persuader , piece * , pistol , revolver , rifle , rod * , saturday-night special , shotgun , thirty-eight , uzi , accelerate , arquebus , blunderbuss , breech-loader , derringer , firearm , flobert , gatling gun , heater , krupp gun , matchlock , piece , rev , rod , speed , stanchion gun , swivel gun , tommy , weapon , winchester

verb

pick off