A formal written application used to apply for something; a form for enrollment, grants, permits, etc.
奨学金の申請書を今日中に提出してください。
Please submit the scholarship application form by the end of today.
申請書に必要事項をすべて記入して署名してください。
Fill in all required fields on the application form and sign it.
申請書の受付は窓口で行っています。
Applications are accepted at the service counter.