攻错 gōngcuò to polish jade Origin Definitions Defs Strokes Stroke Words Sentences Sents 攻 gōng to work on (literary) to work on material; to process; to polish or refine, as in the phrase 它山之石，可以攻玉 tāshānzhīshíkěyǐgōngyù错 錯 cuò grindstone (literary) a coarse stone used for grinding or polishing jade