Mailbox (noun)

1. A box, typically made of metal or plastic, for holding mail to be collected by the postal service.
2. The electronic system for receiving and sending email.

Origin:

Early 18th century (denoting a public box for letters): from mail (in the sense "letters, post") + box.

Examples:

1. He checked his mailbox for new mail.
2. The mailbox was overflowing with letters.
3. She checked her mailbox for new messages.
4. The mailbox was located at the end of the driveway.
5. The office has a shared mailbox for all employees.