| 释义 | trea·ty \ˈtrēd.]ē, -ēt], ]i\ noun
 (-es)
 Usage: often attributive
 Etymology: Middle English tretee, from Middle French traité, from Medieval Latin & Latin; Medieval Latin tractatus treaty, from Latin, handling, treatment, treatise, from tractatus, past participle of tractare to handle, manage, discuss, treat — more at treat
 1. obsolete  : treatise
 < in his excellent treaty of bodies — Sir Thomas Browne >
 2.  : the action of treating and especially of negotiating : discussion aimed at an adjustment of differences or the reaching of an agreement — usually used in the phrase in treaty
 < unable to endure his loneliness, he was in treaty for a new wife — Times Literary Supplement >
 3.
 a.  : an agreement or arrangement made by negotiation:
 (1)  : private treaty
 (2)  : a contract in writing between two or more political authorities (as states or sovereigns) formally signed by representatives duly authorized and usually ratified by the lawmaking authority of the state
 < the president … shall have power, by and with the advice and consent of the Senate, to make treaties — U.S. Constitution >
 — see personal treaty, real treaty; compare bilateral, convention, executive agreement, multilateral, protocol
 b.  : a document in which such a contract is set down
 4.  : a formal meeting between representatives of the United States government and of one or more Indian tribes designed to produce a settlement (as of issues in dispute)
 < Congress had promised them a treaty, which was to have been holden about this time — Rufus Putnam >
 5.  : an agreement or contract (as between companies) providing for treaty reinsurance
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