1
- a strong underground prison cell, especially in a castle（尤指城堡中的）地下土牢, 地牢。
1.1
- (in fantasy role-playing games) a labyrinthine subterranean setting（指一种想像的角色扮演游戏中的背景）地下城。
词源
Middle English （also with the sense 'castle keep'）： from Old French （perhaps originally with the sense 'lord's tower' or 'mistress tower'）, based on Latin dominus 'lord, master'. Compare with DONJON.