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[tree-tee] /ˈtri ti/
noun, plural treaties.
a formal agreement between two or more states in reference to peace, alliance, commerce, or other international relations.
the formal document embodying such an international agreement.
any agreement or compact.
Origin of treaty
1350-1400; Middle English trete < Anglo-French < Latin tractātus tractate
Related forms
nontreaty, noun, plural nontreaties. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for treaty
Contemporary Examples
Historical Examples
  • The treaty of Utrecht secured to Britain a monopoly of that traffick.

    A Defence of Virginia Robert L. Dabney
  • A treaty was framed, and at first rejected by the United States Senate.

    The Nation in a Nutshell George Makepeace Towle
  • In 1726, the treaty of Hanover was delayed by these means a whole year.

    The Federalist Papers Alexander Hamilton, John Jay, and James Madison
  • He is now actually in treaty for an inn, which will do his business for life.

    Clarissa, Volume 3 (of 9) Samuel Richardson
  • Any man can sign a treaty, I suppose, if you tell him what kind of treaty it must be.

    Women and the Alphabet Thomas Wentworth Higginson
British Dictionary definitions for treaty


noun (pl) -ties
  1. a formal agreement or contract between two or more states, such as an alliance or trade arrangement
  2. the document in which such a contract is written
any international agreement
any pact or agreement
an agreement between two parties concerning the purchase of property at a price privately agreed between them
(archaic) negotiation towards an agreement
(in Canada)
  1. any of the formal agreements between Indian bands and the federal government by which the Indians surrender their land rights in return for various forms of aid
  2. (as modifier): treaty Indians, treaty money
an obsolete word for entreaty
Derived Forms
treatyless, adjective
Word Origin
C14: from Old French traité, from Medieval Latin tractātus treaty, from Latin: discussion, from tractāre to manage; see treat
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for treaty

late 14c., "treatment, discussion," from Old French traité "assembly, agreement, treaty," from Latin tractatus "discussion, handling," from tractare "to handle, manage" (see treat). Sense of "contract between nations" is first recorded early 15c.

Online Etymology Dictionary, © 2010 Douglas Harper
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