impostglossary / IMPOST impost (im-pohst). A tax or duty, esp. a customs duty (the impost was assessed when the ship reached the mainland). See DUTY(4). 词条贡献者 译者晓晨,毕业于世界顶级翻译学院,擅长翻译各种与反垄断咨询与合规相关的法律文件。