C/o meaning mail

That's correct! "C/O" is an abbreviation for "Care of", which is often used in addresses to indicate that a letter or package should be delivered to a specific person or organization, but not necessarily to the person's actual address.

For example:

In the context of mail, "c/o" is often used to indicate that the recipient is not the primary addressee, but rather a secondary or intermediate recipient who will then forward the mail to the intended recipient.