flag stateglossary / FLAG STATE flag state. Maritime law. The state under whose flag a ship is registered. • A ship may fly the flag of one state only. [Cases: Shipping2. C.J.S. Shipping § 1.] 词条贡献者 法律翻译Vivian,毕业于美国顶尖的翻译学院,专注翻译各类与水利资源有关的法律文件。