one subject ruleglossary / ONE-SUBJECT RULE one-subject rule. The principle that a statute should embrace only one topic, which should be stated in its title. — Also termed single-subject rule.[Cases: Statutes 107. C.J.S. Statutes § 208.] 词条贡献者 法律翻译郭敏,毕业于欧洲顶尖的高级翻译学院,擅长翻译涉及互动娱乐领域的法律文件。