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.Indentured servitude is a form of labor in which an individual is under contract to work without a salary for a certain timeframe to repay a loan. "Credit Group" has the meaning set forth in the Master Indenture. "Date of Issuance" means February 26, 2015. An indenture contract was originally a legal document cut in half with an irregular, "indented" cut. The meaning of INDENTURE is a document or a section of a document that is indented. How to use indenture in a sentence. 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. Meaning specified in the related Indenture Supplement.