commission dayglossary / COMMISSION DAY commission day. English law. The opening day of the assizes. • On this day the commission that authorizes the judge to act is publicly read. — Also written commission-day. 词条贡献者 译员Dennis,毕业于英国顶尖的高级翻译学院,专注翻译各种与高管退休金和员工福利有关的法律文件。