Nantoka/洞窟dòng kū洞窟 (dòng kū) is a Chinese word meaning “a cave”.Meanings1a caveCharacters in 洞窟洞dòng · cave窟kū · caveRelated words洞cave洞used in 洪洞[Hong2 tong2] (the name of a place in Shanxi)洞穴cave漏洞leak黑洞(astronomy) black hole山洞cavern贫民窟slum housing空洞cavity洞察力insight窟cave防空洞air raid shelter; bomb shelter洞口cave mouthStudy Chinese with flashcards →