arsenal has definitions from the fields of work,business,arms,military
1
[ noun ] (military,arms) a military structure where arms and ammunition and other military equipment are stored and training is given in the use of arms

Synonyms

armoury armory

2
[ noun ] (military,arms) all the weapons and equipment that a country has

Synonyms

armoury armory

Related terms

armament

3
[ noun ] (work,business,arms) a place where arms are manufactured

Synonyms

armoury armory

Related terms

foundry

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