rule of fourglossary / RULE OF FOUR rule of four. The convention that for certiorari to be granted by the U.S. Supreme Court, four justices must vote in favor of the grant. See CERTIORARI. [Cases: Federal Courts 452, 509.] 词条贡献者 译者亚明,毕业于国内一流的高级翻译学院,擅长翻译各种与网络安全、隐私和数据保护相关的法律文件。