/ Dictionary / Index N nonaggression: Meaning and Definition of Find definitions for: non•ag•gres•sion Pronunciation: (non"u-gresh'un) [key] — n. abstention from aggression, esp. by a nation. —adj. of or pertaining to abstention from aggression: a nonaggression pact. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nonaggression (Thesaurus) nonagenarian nonagon Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language