n. 契约, 协定

[法] 合同, 教廷条约, 协定

[ noun ]
a signed written agreement between two or more parties (nations) to perform some action
<noun.communication>

Concordat \Con*cor"dat\, n. [F. concordat, L. concordato, prop.
p. p. of concordare. See {Concord}.]
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 VII and Bonaparte in 1801. --Hook.