Defense or defence may refer to:

Look up defense, defence, or defensive in Wiktionary, the free dictionary.

• Defense (military), forces primarily intended for warfare
• Civil defense, the organizing of civilians to deal with emergencies or enemy attacks
• Defense industry, industry which manufactures and sells weapons and military technology
• Self-defense, the use of force to defend oneself
• Haganah (Hebrew for "The Defence"), a paramilitary organization in British Palestine
• National security, security of a nation state, its citizens, economy, and institutions, as a duty of government
  • Defence diplomacy, pursuit of foreign policy objectives through the peaceful employment of defence resources
  • Ministry of defence or department of defense, a part of government which regulates the armed forces
  • Defence minister, a cabinet position in charge of a ministry of defense
• International security, measures taken by states and international organizations to ensure mutual survival and safety

• Defense (sports), the action of preventing an opponent from scoring
  • Defender (association football), an outfield player whose primary role is to prevent the opposing team from scoring goals
  • Defenceman (ice hockey), a player, other than the goaltender, in a defensive position
  • Defensive batting, a method of avoiding being out in cricket

• Defense (legal), an attempt to avoid criminal or civil liability
• Defence of property, argument that a defendant should not be held liable for any loss caused while acting to protect their property
• Right of self-defense, the right for people to use reasonable force to defend themselves

• Defence, Karachi, a neighbourhood located within Clifton Cantonment of Karachi, Pakistan
• La Défense, a business district near Paris
  • The Grande Arche, commonly known as Arche de la Défense, near Paris

• The Defence (TV series), a 2018 Polish television series
• Defense (chess), a chess opening by Black
• Defence (ship), name of several ships
  • HMS Defence, Royal Navy ships of this name
• Thesis defense, oral examination required for certain advanced degrees
• Defence mechanisms, unconscious psychological mechanisms that reduce anxiety

Wikiquote has quotations related to Defense.

• Defender (disambiguation)
• Biological defense (disambiguation)
• National defense (disambiguation)
• Protection (disambiguation)
• All pages with titles beginning with Defence, Defense, or similar terms
• All pages with titles containing Defense
• All pages with titles containing Defence
• All pages with titles containing Defensive

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