safekeeping

noun4

1. •
   the act of keeping something safe; protection from harm, damage, loss, or theft
2. •
   the storage of assets in a protected area

   • I locked the documents in my bureau for safekeeping.
3. •
   the responsibility of a guardian
4. •
   (US) not returning checks; a system wherein banks keep checks (cheques) that people write, rather than returning them to the account holder with their monthly statement.