增订 Traditional form: 增訂 Pinyin (reading): zēngdìng Definitions: to revise and enlarge (a book) to augment a purchase order Characters: 增 - to increase; to expand; to augment; to add 订 - to make an order; to draw up an agreement Traditional characters: 增 - to increase; to expand; to augment; to add 訂 - to make an order; to draw up an agreement