Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Language: Italian
Origin: arsenale, from Arabic dar sina'ah 'house where things are made'

arsenal

noun
     
Related topics: Weapons
ar‧se‧nal [countable]
1 a large group of weapons that someone has:
Britain's nuclear arsenal
arsenal of
an arsenal of guns
2PMW a building where weapons are stored
3 the equipment, methods etc that someone can use to help them achieve something:
a software package that's now part of our arsenal
arsenal of
He has a whole arsenal of cameras.

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