置换 Traditional form: 置換 Pinyin (reading): zhìhuàn Definitions: to permute permutation (math.) to displace displacement to replace replacement Characters: 置 - to lay out, to place, to set aside 换 - to change; to exchange, to swap, to trade Traditional characters: 置 - to lay out, to place, to set aside 換 - to change; to exchange, to swap, to trade