arsenal

arsenal — noun

1. the total set of weapons, missiles, or military equipment that a country, group,

1.nounC1
Definition

the total set of weapons, missiles, or military equipment that a country, group, or armed force keeps ready for use, or the building where such weapons are kept and sometimes built.

Example

North Korea has steadily expanded its nuclear arsenal over the past decade.

[country]'s nuclear arsenal — total weapons stock

Soldiers guarded the old arsenal on the edge of town day and night.

physical building sense

Common collocations
  • nuclear arsenal
  • chemical arsenal
  • military arsenal
  • expand the arsenal
  • build up an arsenal
Synonyms
  • stockpile

    neutral; emphasises the quantity stored, not the building

  • armoury

    British spelling; mainly the room or building where weapons are kept

  • armory

    American spelling of armoury

  • cache

    smaller, often hidden store of weapons

Grammar Patterns

arsenal of [weapons]

[country]'s nuclear arsenal

Usage Note

Often modified by a weapon type (nuclear, chemical, missile) or by a possessor (the country, the army, the militia). When the meaning is the building, the noun is usually preceded by 'the' or 'an' and a location follows.

Common Mistakes

The army has an arsenal weapon.
The army has an arsenal of weapons.
'arsenal' is the whole stock; use 'arsenal of' before the items.
They built a new arsenal of factory.
They built a new arsenal.
the building sense already includes the idea of weapons; no extra noun is needed.

2. a large and impressive supply of resources, skills, arguments, or techniques tha

2.nounC1
Definition

a large and impressive supply of resources, skills, arguments, or techniques that someone can draw on to deal with a task or challenge.

Example

Greta brought a whole arsenal of cooking tricks to the family reunion in Kaohsiung.

an arsenal of + skills/techniques

The lawyer had an arsenal of arguments ready before the judge entered the courtroom.

arsenal of arguments — debate context

Common collocations
  • arsenal of arguments
  • arsenal of techniques
  • arsenal of skills
  • arsenal of weapons (figurative)
  • build up an arsenal
Synonyms
  • repertoire

    favoured for skills, performances, or techniques one can perform

  • toolkit

    more practical and modern; emphasises ready-to-use methods

  • array

    neutral; stresses variety rather than readiness

Grammar Patterns

an arsenal of + plural noun

Usage Note

Almost always appears as 'an arsenal of' followed by a plural noun naming the resources. The figurative use carries a positive tone of being well-prepared, unlike sense 1, which describes literal weapons.

Common Mistakes

She has an arsenal of patience.
She has an arsenal of calming techniques.
the figurative sense needs countable, plural resources, not an abstract mass noun.
He used his arsenal to win the debate.
He used his arsenal of facts to win the debate.
without 'of + plural noun', readers default to the literal weapons sense.

Word family

Synonym discussion

Sense: noun/1

All four nouns name a store of weapons, but the angle differs. 'Arsenal' is the broadest and most institutional — it suggests the full set of weapons a country, army, or organisation keeps ready, and it can also name the building. 'Stockpile' is neutral and quantitative; it stresses how much has been accumulated and works for non-weapon items too (a stockpile of vaccines). 'Armoury' (US 'armory') is narrower — usually the room or building where weapons are kept on a base or for the public, not the national total. 'Cache' is the smallest and often secret: a hidden cache of rifles in a basement. So 'France's nuclear arsenal' (national total), 'a stockpile of missiles' (counted quantity), 'the regiment's armoury' (the storage room), and 'a weapons cache in the forest' (hidden stash) each fit a different scene.

arsenal ↗stockpile ↗armourycache ↗

Common collocations

Nouns

  • nuclear arsenal
  • chemical arsenal
  • weapons arsenal
  • military arsenal

Phrases

  • build up an arsenal
  • expand the arsenal
  • an arsenal of weapons
  • an arsenal of arguments

Prepositions

  • arsenal of

Etymology

ArabicItalianEnglish

Arsenal entered English in the late 1500s through Italian 'arsenale', meaning a dockyard or workshop, especially the famous shipyard of Venice. Italian itself borrowed the word from Arabic 'dar as-sina'a', literally 'house of manufacture'. The original idea was a place where things — at first ships, then weapons — were built; from there the meaning slid to cover the weapons stored or made there, and later, in modern English, any rich supply of resources someone can draw on.