arsenal
noun [ C ] uk/ˈɑː.sən.əl/ us/ˈɑːr.sən.əl/
武器库；军火库
a building where weapons and military equipment are stored
The army planned to attack enemy arsenals. 军队计划攻击敌人的军火库。
（一大批）储备的武器
a collection of weapons
The country has agreed to reduce its nuclear arsenal. 该家已同意削减其核武器储备。