窟

meaning for 窟 kū:

• - cave
• - holerock cave
• - grotto
• - cliff caves (often with Buddhist statues)slum housinglit. nest of devils
• - place occupied by sinister forceslit. a crafty rabbit has three burrows
• - a sly individual has more than one plan to fall back on (idiom)Mogao caves in Dunhuang 敦煌 , Gansu