noun
authorized absence; excused absence from class
Formal term used in educational contexts for an absence that has been officially approved, such as for a school event or illness. Often contrasted with unexcused absence.
See also: 公欠
公認欠席の申請は、事前に事務局へ提出してください。
Please submit your application for authorized absence to the office in advance.
He was given an excused absence due to the flu.