noun
compensatory leave; reward holiday
A holiday granted by an employer to recognize an employee's hard work or long service, similar to a reward day off.
プロジェクトの成功を祝って、社員に慰労休暇が与えられた。
Employees were given compensatory leave to celebrate the project's success.
Compound of 慰労 (いろう, 'recognition of services') and 休暇 (きゅうか, 'holiday, leave').