Trusts are legal arrangements that allow a person to transfer assets to another party for the purpose of managing and protecting them. Trusts are commonly used in estate planning, allowing individuals to pass ON their assets to their heirs without going through probate court. The term 'trusts with 'ON'' refers to trusts that are established with a trustee, who is responsible for managing the trust's assets. The term RELIES (6 letters) is an appropriate description of the relationship between the trustor and the trustee, as the trustor must rely ON the trustee to manage the trust's assets responsibly.