Source : Webster's Revised Unabridged Dictionary (1913)

Navy \Na"vy\; n.; pl. {Navies}. [ OF. navie, fr. L. navis ship.
   See {Nave} of a church.]
   1. A fleet of ships; an assemblage of merchantmen, or so many
      as sail in company. ``The navy also of Hiram, that brought
      gold from Ophir.'' --1 kings x. 11.

   2. The whole of the war vessels belonging to a nation or
      ruler, considered collectively; as, the navy of Italy.

   3. The officers and men attached to the war vessels of a
      nation; as, he belongs to the navy.

   {Navy bean}. see {Bean}.

   {Navy yard}, a place set apart as a shore station for the use
      of the navy. It often contains all the mechanical and
      other appliences for building and equipping war vessels
      and training their crews.

Source : WordNet®

navy
     n 1: an organization of military naval forces [syn: {naval forces}]
     2: a dark shade of blue [syn: {dark blue}, {navy blue}]