private signatureglossary / private signature Civil law. A signature made on a document (such as a will) that has not been witnessed or notarized. [Cases: Wills 149. C.J.S. Wills § 338.] 词条贡献者 译员Bernardine,毕业于英国顶尖的高级翻译学院,专注翻译各种与医疗保健及生命科学有关的法律文件。