You write c/o before an address on an envelope when you are sending it to someone who is staying or working at that address, often for only a short time. c/o is an abbreviation for 'care of. '

What is mean by C O in address?

"Care of" simply means by way of someone, through someone or "in care of" another party. Oftentimes, you can find it abbreviated as C/O. People often use this phrase to send mail to someone they don't have an address for or to send mail to themselves.

How is C O used in an address?

Meaning of C/O

Mail sent with the letters c/o in the address are sent "in care of" someone else. That means that the post office should deliver the mail to the person or entity such as a business or company listed "c/o" on the address, who should then give it to the person to whom it is addressed.