n. any instrument or instrumentality used in fighting or hunting
n. a means of persuading or arguing
n. 武器, 兵器
vt. 武装
1. A knife can be used as a weapon in self-defense.
刀可以用作自卫武器。
2. The police found a weapon at the crime scene.
警方在犯罪现场发现了一件武器。
3. Many countries have laws to control the use of weapons.
许多国家有法律来控制武器的使用。