|Origin:||Perhaps from Gunnilda, a woman's name, from Old Norse Gunnhildr|
gun1 S2 W2 [countable]
a metal weapon which shoots bullets or shells
have/hold/carry a gun
I could see he was carrying a gun.
I've never fired a gun in my life.
Jake was pointing a gun at the door.
Two policemen were killed in a gun battle.
to put a gun very close to someone's head to shoot them or to force them to do something:
He put a gun to her head and told the cashier to hand over the money.
to force someone to do something they do not want to do:
You chose to live here. Nobody put a gun to your head.
a tool that forces out small objects or a liquid by pressure: ➔ flashgun, spray gun
a paint gun
a nail gun
4 also starting pistol
a gun which is fired into the air at the start of a race
5 American English informal
someone who is very important within an organization:
Jed wanted to impress a Harvard professor and some other big guns.
6 American English informal
someone who is paid to shoot someone else
if you do something with all guns blazing, you do it with a lot of energy, determination, and noise