noun, noun or participle which takes 'suru', transitive verb
Primarily used for attaching documents, files, or supplementary materials to a main item, such as in emails, applications, or reports.
メールに履歴書を添付して送ってください。
Please attach your resume to the email and send it.
申請書には写真を添付する必要があります。
You need to attach a photo to the application form.