Read Edit View history 硐 dòngtóng variant of U+6D1E 洞 Origin Definitions Defs Strokes Stroke Words Sentences Sents Components 石 石 Meaning component shí stone rock 同 同 Sound component tóng, tong, tòng together Historical Pronunciations Old ChineseZhengzhangdoːŋdoːŋʔ Sources Readings & variants Unicode Historical pronunciations Zhengzhang Shangfang