Indenture refers to a legal and binding agreement, contract, or document between two or more parties. "indenture security holder" means a Bondholder."indenture to be qualified" means this Indenture. This FIRST SUPPLEMENTAL INDENTURE, dated as of July 1, 2022 (this "First. 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. "County" means the County of Alameda. 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. An indenture is a legal contract that reflects an agreement between two parties. This was the methodology used (preTIFIA) to score the budgetary cost of the Alameda Corridor loan.