孤こ塁るい

noun

isolated stronghold; isolated fort

Military term for a fortress or defensive position that is cut off from support. Often used in historical or strategic contexts.

• 敵てきに包ほう囲いされた孤こ塁るいは、数すう日じつ後ごに陥かん落らくした。

  The isolated stronghold, surrounded by the enemy, fell after a few days.