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