/ Dictionary / Index A army: Meaning and Definition of Find definitions for: ar•my Pronunciation: (är'mē), [key] — pl. -mies. the military forces of a nation, exclusive of the navy and in some countries the air force. (in large military land forces) a unit consisting typically of two or more corps and a headquarters. a large body of persons trained and armed for war. any body of persons organized for any purpose: an army of census takers. a very large number or group of something; a great multitude; a host: the army of the unemployed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: army (Thesaurus) arm wrestling Army Air Forces Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language