an object such as a gun, knife, or bomb that is made or used to hurt, kill, or damage
The guard dropped his weapon when he saw the children.
Every soldier must keep their weapon clean to make sure it works.
✦ From Old English wǣpen, related to Old Norse vápn and German Waffe, all meaning “arm” or “weapon.”
something such as a skill, idea, or piece of information that helps you gain an advantage or defeat an opponent
Her calm voice became a powerful weapon in the heated debate.
Knowledge is the best weapon against fear.
(slang) a person or thing considered extremely impressive, exciting, or excellent
That new electric guitar is an absolute weapon!
Did you see her goal? She’s a real weapon on the field.