Indenture refers to a legal and binding agreement, contract, or document between two or more parties. An indenture is a legal contract that reflects an agreement between two parties.Although the term is most familiarly used to refer to a labor contract. The meaning of INDENTURE is a document or a section of a document that is indented. How to use indenture in a sentence. 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. Section 8.1 Ratification of Indenture. "City" means the City of Detroit, County of Wayne, State of Michigan. "Code" means the Internal Revenue Code of 1986, as amended, and the rulings and. "Collateral" has the meaning specified in the Granting Clause of this Bond Indenture.