drop letterglossary / DROP LETTER drop letter. A letter addressed to someone in the delivery area of the post office where the letter was posted. [Cases: Postal Service 23. C.J.S. Postal Service and Offenses Against Postal Laws § 22.] 词条贡献者 译者Frank,毕业于英国一流的高级翻译学院,擅长翻译涉及交通物流领域的法律文件。