[1] : The Collaborative International Dictionary of English v.0.48

ally \ally"\, n.; pl. allies. see ally, v.
   1. a relative; a kinsman. obs. --shak.
      1913 webster

   2. one united to another by treaty or league; -- usually
      applied to sovereigns or states; a confederate.
      1913 webster

            the english soldiers and their french allies.
                                                  --macaulay.
      1913 webster

   3. anything associated with another as a helper; an
      auxiliary.
      1913 webster

            science, instead of being the enemy of religion,
            becomes its ally.                     --buckle.
      1913 webster

   4. anything akin to another by structure, etc.
      1913 webster
see also:
allies ally 

[2] : WordNet (r) 2.0

allies
     n 1: the alliance of nations that fought the axis in world war ii
          and which with subsequent additions signed the charter
          of the united nations in 1945
     2: in world war i the alliance of great britain and france and
        russia and all the other nations that became allied with
        them in opposing the central powers
     3: an alliance of nations joining together to fight a common
        enemy

Allies >> A Words
Allies, definition of term: Allies
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