1. the action of defending someone or something from attack or harm
Usage: British spelling; American spelling is ‘defense’
2. military measures or resources for protecting a country
Usage: British spelling
3. the case presented by or on behalf of the party being accused or sued in a legal proceeding
Usage: British spelling; legal

Examples

• The castle’s thick walls provided excellent defence against enemy attacks.
• The country increased its defence spending after the border conflict.
• The lawyer prepared a strong defence for her client.
• Their defence was solid throughout the match, allowing only one goal.
• She spoke in defence of her colleague’s actions.
• The team’s defence collapsed in the final minutes of the game.