/ Dictionary / Index N NATO: Meaning and Definition of Find definitions for: NATO Pronunciation: (nā'tō), [key] — n. 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. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nato (Thesaurus) natl. natrium Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language