Source : Webster's Revised Unabridged Dictionary (1913)

Manofwar \Man`*of*war"\, n; pl. {Men-of-war}.
   A government vessel employed for the purposes of war, esp.
   one of large size; a ship of war.

   {Man-of-war bird} (Zo["o]l.), The frigate bird; also applied
      to the skua gulls, and to the wandering albatross.

   {Man-of-war hawk} (Zo["o]l.), the frigate bird.

   {Man-of-war's man}, a sailor serving in a ship of war.

   {Portuguese man-of-war} (Zo["o]l.), any species of the genus
      {Physalia}. See {Physalia}.

Source : WordNet®

man-of-war bird
     n : long-billed warm-water seabird with wide wingspan and forked
         tail [syn: {frigate bird}]