窟 ⇒
贫民窟 pínmínkū, [貧民窟], slum housing
窟 kū, cave/hole
窟窿 kūlong, hole/pocket/cavity/loophole/debt
洞窟 dòngkū, a cave
魔窟 mókū, lit. nest of devils/place occupied by sinister forces
冰窟 石窟 shíkū, rock cave/grotto/cliff caves (often with Buddhist statues)
地窟