an organization formed in Washington, D.C. (1949), comprising the 12 nations of the Atlantic Pact together with Greece, Turkey, and the Federal Republic of Germany, for the purpose of collective defense against aggression.

Origin of NATO

N(orth) A(tlantic) T(reaty) O(rganization) Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for nato

Contemporary Examples of nato

Historical Examples of nato

  • NATO and the international peacekeeping force against an unholy – and, until recently, improbable – alliance.

    After the Rain

    Sam Vaknin

  • NATO, struggling to redefine itself and perpetuate its totally superfluous existence.

    After the Rain

    Sam Vaknin

British Dictionary definitions for nato



n acronym for

North Atlantic Treaty Organization, an international organization composed of the US, Canada, Britain, and a number of European countries: established by the North Atlantic Treaty (1949) for purposes of collective security. In 1994 it launched the Partnership for Peace initiative, in order to forge alliances with former Warsaw Pact countries; in 1997 a treaty of cooperation with Russia was signed and in 1999 Hungary, Poland, and the Czech Republic became full NATO members
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

Word Origin and History for nato


acronym of North Atlantic Treaty Organization, which was set up in 1949.

Online Etymology Dictionary, © 2010 Douglas Harper