换帖 Traditional form: 換帖 Pinyin (reading): huàntiě Definitions: to exchange cards containing personal details (when taking an oath of fraternity) Characters: 换 - to change; to exchange, to swap, to trade 帖 - card, invite, notice; to fit snugly Traditional characters: 換 - to change; to exchange, to swap, to trade 帖 - card, invite, notice; to fit snugly