army Meaning, Definition & Usage

  1. noun a permanent organization of the military land forces of a nation or state
    ground forces; regular army.
  2. noun a large number of people united for some specific purpose
  3. noun the army of the United States of America; the agency that organizes and trains soldiers for land warfare
    U. S. Army; United States Army; USA; US Army.

WordNet

Ar"my noun
Etymology
F. armée, fr. L. armata, fem. of armatus, p. p. of armare to arm. Cf. Armada.
Definitions
  1. A collection or body of men armed for war, esp. one organized in companies, battalions, regiments, brigades, and divisions, under proper officers.
  2. A body of persons organized for the advancement of a cause; as, the Blue Ribbon Army.
  3. A great number; a vast multitude; a host.
    An army of good words. Shak.

Webster 1913