信用卡 Traditional form: 信用卡 Pinyin (reading): xìnyòngkǎ Definitions: credit card Characters: 信 - to trust, to believe; letter, sign 用 - to use, to employ, to apply; use 卡 - card, punch card; calorie Traditional characters: 信 - to trust, to believe; letter, sign 用 - to use, to employ, to apply; use 卡 - card, punch card; calorie