退关 Traditional form: 退關 Pinyin (reading): tuìguān Definitions: shut-out, container or consigment not carried on the intended vessel or aircraft Characters: 退 - to retreat, to step back, to withdraw 关 - frontier pass; to close, to shut; relation Traditional characters: 退 - to retreat, to step back, to withdraw 關 - frontier pass; to close, to shut; relation