arsenal

noun

ar·​se·​nal ˈärs-nəl 

ˈär-sə-

1

a

: an establishment for the manufacture or storage of arms and military equipment

The city is home to a federal arsenal.

b

: a collection of weapons

2

: store, repertoire

the team's arsenal of veteran players

Synonyms of arsenal

• armory
• warehouse

Examples of arsenal in a Sentence

The city is home to a federal arsenal.

Doctors have a broad arsenal of medicines to choose from.

the team's arsenal of veteran players

Recent Examples on the Web

The system – part of an arsenal of police surveillance technology advocates have warned about like license plate readers – is a network of audio sensors designed to record the sound of gunshots and tell authorities where the shots were fired. — N'dea Yancey-Bragg, USA Today, 11 July 2026

Additionally, Slightom has a slider and changeup in his arsenal that continues to develop. — Jaylon Thompson, Kansas City Star, 11 July 2026

Under the banner of resisting the West, Khamenei defied sanctions to build up the country’s nuclear program, its arsenal of missiles and its network of militant allies across the region. — ABC News, 9 July 2026

But Kostyuk, who has done tremendous work of her own this season to add solidity and evenness to a tennis arsenal with impossible peaks, but also deep troughs, had reasons to do much more than feel the agony of missing out. — James Hansen, New York Times, 9 July 2026

Word History

Etymology

earlier, "dockyard for the construction and repair of naval vessels," borrowed from Middle French archenal, arsenail, arsenal (in reference to the naval dockyard of Venice), borrowed (with conformation of the final to -al -al entry 2) from Upper Italian (Venice) arzanà, presumably alteration (by metanalysis, with the initial taken as the preposition d', di "from") of darsenà (attested in Genoese, earlier in Medieval Latin as darsena, darsana), borrowed from Arabic dār al-ṣināʽa "place of manufacture," from dār "house" + al "the" (assimilated to aṣ) + ṣināʽa "manufacture" (derivative of ṣanaʽa "to make")

Note: Forms with final -ale (as arsenale, arzanale, arzenale) are attested in Italian in the sixteenth century and may be the immediate source of the English word. The French forms with -al may reflect these, though attested about a century earlier. As arzanà the Venetian word is attested in the text of Dante's Inferno ("nell'arzanà de' Viniziani," XXI, 7).

First Known Use

1555, in the meaning defined at sense 1a

Kids Definition

arsenal

noun

ar·​se·​nal ˈärs-nəl 

-ᵊn-əl

1

: a place for the manufacture or storage of arms

2

: a collection of weapons