noun
arsenal
AHR-suh-nul/ˈɑːrsənl/
A store of weapons ready for use.
The cabinet contains an arsenal of secured weapons.

Etymology
The “house of manufacture” became a dockyard with naval stores, then a place for making or storing weapons. The collection sense shifts from the storehouse to its contents, extending to other resources available for use.
In context
the commission has two important weapons in its arsenal firstly the commission can conduct surprise inspections at the company's premises
More examples
- She drew on an arsenal of techniques.
- The old arsenal became a museum.
- The team expanded its arsenal of tools.
Forms
arsenal · arsenals
Similar words
- stockpile
- A stored supply without necessarily military use.
- armory
- Often a weapons collection or its storage place.