Nantoka/洞穴dòng xué洞穴 (dòng xué) is a Chinese word meaning “cave; cavern”.Meanings1cave2cavernCharacters in 洞穴洞dòng · cave穴xué · caveRelated words洞cave洞used in 洪洞[Hong2 tong2] (the name of a place in Shanxi)漏洞leak黑洞(astronomy) black hole山洞cavern空洞cavity穴cave穴居to live in a cave巢穴lair洞察力insight墓穴tomb防空洞air raid shelter; bomb shelterStudy Chinese with flashcards →