C/O is a very common abbreviation. This abbreviation is used as a writing address in letter posting. If you are going to live at other address except for your fixed address, where your address is not registered, then, in that case, we put landlord’s name in C/O, whose address is registered.
C/O Full Form: Care Of
The full form of C/O is “Care of”.
Suppose you are leaving a city and moving to another city, in such situation, you will use your landlords’ name in C/O to get a letter or parcel to you, where you are staying. Because the local postmen do not know you but the address of the person whose name you have written in C/O, the local Postmen knows that, this will not make any difficulty for the Postmen to get Parcel or Letter to you.
C/O Miranda Page
25 Oval Road, Street 12
In the above example, John Snow is living in Miranda Page’s house. So he used C/O Miranda Page.