课金 Traditional form: 課金 Pinyin (reading): kèjīn Definitions: tax levied on a conquered people by an army fee for a divination session variant of 氪金 (kèjīn), in-app purchase (gaming) Characters: 课 - subject, lesson, course; classwork 金 - gold, metal; money Traditional characters: 課 - subject, lesson, course; classwork 金 - gold, metal; money