C/o mail address

A common abbreviation!

"C/o" is short for "care of", and it's often used in mailing addresses to indicate that the mail should be delivered to a specific person or department at a particular location.

For example:

• John Smith, c/o Jane Doe, 123 Main St, Anytown, USA
• Marketing Department, c/o ABC Corporation, 456 Elm St, Othertown, USA

In this case, the mail would be delivered to Jane Doe at the specified address, and then she would forward it to John Smith or the Marketing Department, respectively.

The "c/o" abbreviation is often used in formal business correspondence, and it's a polite way to indicate that the mail should be handled by someone else.