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 双语律师Lorna,国际知名商学院金融专业,擅长翻译涉及金融创新和金融科技领域的法律文件。