Indenture refers to a legal and binding agreement, contract, or document between two or more parties. An indenture agreement is a legally binding document or contract that establishes terms and conditions between two or more parties."Tuition Revenues" shall be as defined in the Master Trust Indenture. "Unassigned Rights" shall have the meaning set forth in the Granting Clauses hereof. A contract between an Issuer and a Trustee (normally a commercial bank with trust powers) under which the Issuer issues Bonds and specifies their Maturities. A mortgage indenture is a final agreement between a lender and a borrower that sets the terms and conditions of a loan agreement between them. An indenture, signed at the closing of the issuance of the notes, is a contract between the issuer of the notes, any guarantors of the debt and the trustee. This SECOND SUPPLEMENTAL INDENTURE dated as of August 1, 2002 (die. "Trust Estate" means, as of any particular time, all property which at such time is subject to the Lien of this Indenture. A trust indenture is an agreement in a bond contract made between a bond issuer and a trustee that represents the bondholder's interests.