concordat Meaning, Definition & Usage

  1. noun a signed written agreement between two or more parties (nations) to perform some action
    covenant; compact.

WordNet

Con*cor"dat noun
Etymology
F. concordat, L. concordato, prop. p. p. of concordare. See Concord.
Definitions
  1. A compact, covenant, or agreement concerning anything.
  2. An agreement made between the pope and a sovereign or government for the regulation of ecclesiastical matters with which both are concerned; as, the concordat between Pope Pius VIL and Bonaparte in 1801. Hook.

Webster 1913