塞さい外がい

noun

outside a fort; outside a fortress

General term for the area outside a fortification. Rare in modern standalone use; mostly encountered in historical or literary contexts.

• 塞さい外がいに敵てきの軍ぐん勢ぜいが集あつまっている。

  Enemy forces are gathering outside the fort.

noun

outside the Great Wall of China

Specifically refers to the region beyond the Great Wall. A historical term used in classical Chinese and Japanese texts.

• 塞さい外がいの地ちは、古こ来らいより遊ゆう牧ぼく民みんの勢せい力りょく圏けんだった。

  The lands outside the Great Wall have been the sphere of influence of nomadic peoples since ancient times.