definition of
defend

[1] #1 defend v. [support, fend for] argue or speak in defense of; "She supported the motion to strike". wn

[2] #2 defend v. be on the defensive; act against an attack. wn

[3] #3 defend v. [guard, hold] protect against a challenge or attack; "Hold that position behind the trees!"; "Hold the bridge against the enemy's attacks". wn

[4] #4 defend v. [fight, oppose, fight back, fight down] fight against or resist strongly; "The senator said he would oppose the bill"; "Don't fight it!". wn

[5] #5 defend v. [champion] protect or fight for as a champion. wn