Nantoka/洞悉dòng xī洞悉 (dòng xī) is a Chinese word meaning “to clearly understand”.Meanings1to clearly understandCharacters in 洞悉洞dòng · cave悉xī · in all casesRelated words洞cave洞used in 洪洞[Hong2 tong2] (the name of a place in Shanxi)熟悉to be familiar with; to know well洞穴cave漏洞leak黑洞(astronomy) black hole山洞cavern空洞cavity悉尼Sydney, capital of New South Wales, Australia洞察力insight防空洞air raid shelter; bomb shelter洞口cave mouthStudy Chinese with flashcards →