stipulation
noun | \ ˌsti-pyə-ˈlā-shən \ | stip·u·la·tion
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: an act of stipulating
a : an agreement between parties regarding some aspect of a legal proceeding a stipulation of facts admitted the charges in a prehearing stipulation —New York Law Journal
b : a condition, requirement, or item specified in a legal instrument; specifically : stipulation pour autrui : stipulation pour autrui