[ar.my] n, pl armies [ME armee, fr. MF, fr. ML armata--more at armada] (14c) 1 a: a large organized body of armed personnel trained for war esp. on land b: a unit capable of independent action and consisting usu. of a headquarters, two or more corps, and auxiliary troops c often cap: the complete military organization of a nation for land warfare
2: a great multitude "an ~ of bicycles --Norm Fruchter"
3: a body of persons organized to advance a cause