磨刀 Traditional form: 磨刀 Pinyin (reading): módāo Definitions: to hone (a knife) Characters: 磨 - millstone; to grind, to polish, to rub, to wear out 刀 - knife; old coin; measure Traditional characters: 磨 - millstone; to grind, to polish, to rub, to wear out 刀 - knife; old coin; measure