改换 Traditional form: 改換 Pinyin (reading): gǎihuàn Definitions: to change (sth) to alter (sth) to change over (to sth else) Characters: 改 - to alter, to change, to improve, to remodel 换 - to change; to exchange, to swap, to trade Traditional characters: 改 - to alter, to change, to improve, to remodel 換 - to change; to exchange, to swap, to trade