law in actionglossary / LAW IN ACTION law in action. The law as applied in the day-to-day workings of the legal system, as opposed to the law found in books. — Sometimes written law-in-action. See LEGAL REALISM. Cf. LAW IN BOOKS. 词条贡献者 法律翻译Jenna,欧洲顶尖商学院国际经济法专业,专注翻译各类与投资基金和私募股权有关的法律文件。