courierglossary / COURIER courier. A messenger, esp. one who delivers parcels, packages, and the like. • In international law, the term denotes a messenger duly authorized by a sending state to deliver a diplomatic pouch. 词条贡献者 法律翻译晓琳,国际知名商学院金融专业,专注翻译各类与金融服务与投资管理有关的法律文件。