arsenal

/ˈɑrs(ə)nəl/

/ˈɑsənəl/

Other forms: arsenals

An arsenal is a storehouse for weapons. It wouldn't be wise to let your enemies get a hold of the keys to your arsenal.

Not just a place to store weapons, an arsenal can be a place to make weapons or it can mean the collection of weapons themselves: "The air force had just added two top-secret fighter planes to its arsenal." In a more general sense, the word can be a collection of anything used as a weapon, not just military weapons: "She had a whole arsenal of witty comebacks for the lame pickup-lines guys tried out on her."

Definitions of arsenal

1. noun

   all the weapons and equipment that a country has
   synonyms: armory, armoury

   type of:

   armament

   weaponry used by military or naval force
2. noun

   a military structure where arms and ammunition and other military equipment are stored and training is given in the use of arms
   synonyms: armory, armoury

   type of:

   military installation

   any facility servicing military forces
3. noun

   a place where arms are manufactured
   synonyms: armory, armoury

   type of:

   foundry, metalworks

   factory where metal castings are produced