名词

1. 武器;兵器
A weapon is an object such as a gun, a knife, or a missile, which is used to kill or hurt people in a fight or a war.

2. (用于应付困境的)工具，手段
A weapon is something such as knowledge about a particular subject, which you can use to protect yourself or to get what you want in a difficult situation.

1. any instrument or instrumentality used in fighting or hunting

e.g. he was licensed to carry a weapon

Synonym: armweapon system

2. a means of persuading or arguing

e.g. he used all his conversational weapons

Synonym: artillery