What is the meaning of c/o意思

"C/O" is an abbreviation that stands for "Care Of." It is used when addressing mail, packages, or other items to indicate that the contents are to be delivered to a particular person at an address rather than to the person whose name is on the envelope or package. For example, if you wanted to send a letter to your friend John Doe, but he is currently staying at his friend's house, you might use the following address:

C/O [Friend's Name]
[Friend's Address]

This would ensure that the letter is delivered to John at his friend's address.

In some contexts, such as in the military or in hospital settings, "C/O" may also be used to indicate the commanding officer or chief officer of a particular unit or facility.