Noun

1. (military) military action or resources protecting a country against potential enemies
2. Protection from harm
3. (sports) the team that is trying to prevent the other team from scoring
4. The justification for some act or belief
5. (psychiatry) an unconscious process that tries to reduce the anxiety associated with instinctive desires
6. The federal department responsible for safeguarding national security of the united states; created in 1947
7. The defendant and his legal advisors collectively
8. The speech act of answering an attack on your assertions
9. An organization of defenders that provides resistance against attack
10. A structure used to defend against attack
11. A defendant's answer or plea denying the truth of the charges against him
12. The act of defending someone or something against attack or injury