軍ぐん門もん

noun

camp gate; general's headquarters

Historical military term for the gate of a camp or the presence of a general. In modern Japanese, it is almost exclusively used in the set phrase 軍門に降る (to surrender to an enemy).

• 敵てきはついに軍ぐん門もんに降くだった。

  The enemy finally surrendered at the camp gate.

• 「軍ぐん門もん」は現げん代だいでは「軍ぐん門もんに降くだる」という慣かん用よう句くでしか使つかわれない。

  In modern times, 軍門 is only used in the idiomatic phrase 軍門に降る.