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 译者Mathew,国际知名法学院国际仲裁与争端解决专业,擅长翻译各种与美国国内仲裁相关的法律文件。