copartnershipglossary / COPARTNERSHIP copartnership. See PARTNERSHIP. • The terms copartnership and partnership are equally old — each having first appeared in the 1570s. 词条贡献者 资深译员Sheldon,毕业于亚洲顶尖的高级翻译学院,擅长翻译有关零售和消费品领域的法律文件。