Definition: [noun] The action of defending, of protecting from attack, danger or injury.
Definition: [noun] Something used to oppose attacks.
Definition: [noun] An argument in support or justification of something.
Definition: [noun] A strategy and tactics employed to prevent the other team from scoring; contrasted with offence.
Definition: [noun] The portion of a team dedicated to preventing the other team from scoring; contrasted with offence.
Definition: [noun] Government policy or (infra)structure related to the military.
Example: Department of Defence
Definition: [noun] Prohibition; a prohibitory ordinance.