通心 tōngxīn hollow, tubular Origin Definitions Defs Strokes Stroke Words Sentences Sents tōngxīn hollow, tubular 通 tōng verbparticle to lead to to go through; to lead to a place心 xīn noun center the middle or interior part of something; the coretōngxīn sensible 通 tōng adjectiveverb to understand to understand thoroughly; to master a subject or skill心 xīn noun mind thought; intellect; the organ of thinking