Nantoka/空洞kōng dòng空洞 (kōng dòng) is a Chinese word meaning “cavity; empty; vacuous”.Meanings1cavity2empty3vacuousCharacters in 空洞空kōng · empty洞dòng · caveRelated words空empty空to empty洞cave洞used in 洪洞[Hong2 tong2] (the name of a place in Shanxi)空间space; room空气air太空outer space有空to have time (to do sth)天空sky空中in the sky航空aviation空军air forceStudy Chinese with flashcards →