双刃 Traditional form: 雙刃 Pinyin (reading): shuāngrèn Definitions: double-edged blade Characters: 双 - pair, couple; both; measure word for things that come in pairs 刃 - edged tool, cutlery, knife edge Traditional characters: 雙 - pair, couple; both; measure word for things that come in pairs 刃 - edged tool, cutlery, knife edge