Firearm

n.

1.

A gun, pistol, or any weapon from which a shot is discharged by the force of an explosive substance, as gunpowder.

Noun

1.

firearm - a portable gun; "he wore his firearm in a shoulder holster" Synonyms: small-arm, piece

automatic, blowgun, blowpipe, flamethrower, gat, gun, handgun, heater, musket, peashooter, piece, pistol, repeater, revolver, rifle, rod, sawed-off shotgun, shooting iron, shotgun, six-gun, six-shooter