Longman Dictionary of Contemporary English homepage

Language: Old English
Origin: wæpen

weapon

noun
     
Related topics: Weapons
weap‧on S2 W2 [countable]
1PMW something that you use to fight with or attack someone with, such as a knife, bomb, or gun
The police are still looking for the murder weapon.
offensive weapon (=one that can be used to attack someone)
He was convicted of carrying an offensive weapon.
lethal/deadly weapon (=one that can kill)
2 an action, piece of information, piece of equipment etc that you can use to win or be successful in doing something:
a new weapon in the fight against AIDS
Right now, she felt the need of every weapon in her armoury (=weapon that she had), including surprise.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary