arsenal
UK: ˈɑːsənəl | US: ˈɑːrsənəl
n. 1. A collection of weapons and military equipment.
n. 2. A place where weapons and military equipment are stored or manufactured.
n. 3. (Figurative) A rich supply or resource of something (e.g., skills, tools).
The word "arsenal" traces back to the Italian arsenale, derived from Arabic dār aṣ-ṣināʿa ("house of manufacture/art"). The Latin root ars (art, skill) reflects its original association with craftsmanship in weapon production. Over time, it narrowed to specifically denote military storage or production sites, later expanding metaphorically to mean any strategic reserve.
The castle’s arsenal contained swords, shields, and cannons.
The factory was converted into an arsenal during the war.
Her arsenal of negotiation tactics impressed the board.
The team’s arsenal of data tools streamlined their research.
Modern cybersecurity requires a digital arsenal of protective measures.