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Joanne,亚洲顶尖法学院国际贸易专业,擅长翻译涉及媒体、体育和娱乐领域的法律文件。