Omagaki refers to Myobo (identification) listing names of vacant government posts subject to appointment and candidates for such government posts at the time of appointment in Jimoku (ceremony for appointing officials) regularly held in Spring and Autumn.
大間書（おおまがき）とは、春と秋の恒例の除目における任官に際して、任官の対象となる欠員の官職の名称とその候補者を列記した名簿のこと。