An indenture agreement is a legally binding document or contract that establishes terms and conditions between two or more parties. WHEREAS, die Board has examined proposed forms of the Indenture, the Financing.The highyield indenture is a complex and sometimes highly negotiated agreement. Each capitalized term used in this Mortgage and not defined in this Mortgage shall have the meaning ascribed to such term in the Indenture. "First Lien Obligations Termination Date" has the meaning assigned to such term in the. Collateral Agreement. "Second Lien Pledged Collateral" has the meaning specified in the Pledge Agreement. Maturity Date as described in the Indenture. Indenture or the covenants contained in a secured note indenture to an unsecured note indenture, as significant differences are to be expected.