An arsenal is defined as a place where weapons are made and stored, or it may refer to the group of weapons themselves.(noun)
When the police raid a house and find a bunch of automatic guns, it is an example of discovering an arsenal of weapons.
The definition of an arsenal is a collection of things, skills and/or talents.(noun)
An example of having an arsenal of information is the tax professional knows all the ins and outs on how to get his client the best refund.
See arsenal in Webster's New World College Dictionary
Origin: It arsenale, a dock < Ar dāraṣṣināʿa, wharf, workshop < dār, house + al-ṣināʿa, craft, skill
See arsenal in American Heritage Dictionary 4
Origin: Italian arsenale
Origin: , from obsolete arzanale, darsena
Origin: , from Arabic aṣ ṣinā‘a, manufacture, industry
Origin: , and dār-aṣ-ṣinā‘a, place of manufacture
Origin: : dār, house (from dāra, to turn, revolve; see dwr in Semitic roots)
Origin: + al-, the
Origin: + ṣinā‘a, manufacture (from ṣana‘a, to make; see ṣnע in Semitic roots).
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