1The person in question; the person themselves — used to specifically identify the individual concerned, as in identity verification or confirming someone's own wishes.
何か問題があれば本人に連絡してください。
If there is a problem, please contact the person in question.
郵便物は本人しか受け取れない。
Only the person themselves can receive the mail.
本人の同意がなければ情報は開示できない。
Information cannot be disclosed without the person's own consent.
本人確認のため、身分証明書を見せてください。
Please show your ID for identity verification.