defend名詞是defence。
defence
讀音：英[dfens]，美[dfens]。
釋義：n. 防禦；防衛；答辯；防衛設備。
復數：defences。
詞匯搭配：
in defence of the capital 保衛首都
speak in defence of the government 為政府辯護
defence against 為對付…而設的防禦
defence against an attack 防禦進攻
近義詞
vindication
讀音：英 [?v?nd?'ken]，美 [?v?nd?'ken]。
釋義：n. 辯護；證明無罪或正確；洗冤；證實。
例句：The army's victory is being seen as vindication of their tactics.
軍隊的勝利被認為是證明他們的戰術是正確的。
詞匯搭配：
systems vindication 系統驗證
integrality vindication 完整性維護
posthumous vindication 死後證明正確
Vindication of the 為女權辯護