枘a handle for a tool; tenon; tool handle; wedgeStrokes8PinyinruìParts木tree内insideWords with 枘枘凿ruì záo · ruizaoincompatible (abbr. for 方枘圓鑿|方枘圆凿[fang1 rui4 yuan2 zao2]); (literary) compatible (lit. "mortise and tenon")方枘圆凿fāng ruì yuán záo · fangruiyuanzao(lit.) like a square peg in a round hole (idiom); (fig.) incompatibleStudy it in Yanamino