intervenorglossary / INTERVENOR intervenor. One who voluntarily enters a pending lawsuit because of a personal stake in it. — Also spelled intervener. [Cases: Federal Civil Procedure 311; Parties 37. C.J.S. Parties §§ 91–93.] 词条贡献者 资深译员Betty,毕业于亚洲一流的高级翻译学院,专注翻译各种与商业移民有关的法律文件。