Synonym: discharge, fire, firearm, pistol, revolver, rifle, shoot, weapon. Similar words: gut, guy, run, go up, gob, aunt, ban, bug. Meaning: [gʌn] 
n. 1. a weapon that discharges a missile at high velocity (especially from a metal tube or barrel) 2. large but transportable armament 3. a person who shoots a gun (as regards their ability) 4. a professional killer who uses a gun 5. a hand-operated pump that resembles a revolver; forces grease into parts of a machine 6. a pedal that controls the throttle valve 7. the discharge of a firearm as signal or as a salute in military ceremonies. v. shoot with a gun.
n. 1. a weapon that discharges a missile at high velocity (especially from a metal tube or barrel) 2. large but transportable armament 3. a person who shoots a gun (as regards their ability) 4. a professional killer who uses a gun 5. a hand-operated pump that resembles a revolver; forces grease into parts of a machine 6. a pedal that controls the throttle valve 7. the discharge of a firearm as signal or as a salute in military ceremonies. v. shoot with a gun. 
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(1) It is the man behind the gun that tells. 
(2) They threatened the shopkeeper with a gun.
(3) Her knuckles whitened as she gripped the gun.
(4) He shot the bird with his gun.
(5) I could see he was carrying a gun.
(6) She managed to snatch the gun from his hand.
(7) She reloaded the gun as quickly as she could.
(8) He stooped and put down his gun.
(9) She aimed the gun carefully.
(10) A guard zapped him with the stun gun.
(11) What is the range of your gun?
(12) The machine gun hailed over our heads.
(13) He fired the gun from point-blank range.
(14) I kept the gun aimed squarely at his eyes.
(15) He used the gun in self-defence.
(16) This toy machine gun dismantles easily.
(17) The soldier reached for his gun.
(18) It's dangerous to have a gun about the house.
(19) He held his gun in readiness.
(20) The attacker threatened them with a gun.
(21) Bullets fed into a machine gun.
(22) The gun can fire invisible rays.
(23) She raised the gun and fired.
(24) He aimed the gun at his own head.
(25) She's a big gun in city politics.
(26) The birds scattered at the sound of the gun.
(27) The gun made a bulge under his jacket.
(28) It's dangerous to have a gun around the house.
(29) There was a bang as the gun was fired.
(30) The hunter hit at a deer with his gun.