Source : Webster's Revised Unabridged Dictionary (1913)

Arrange \Ar*range"\, v. t. [imp. & p. p. {Arranged}; p. pr. &
   vb. n. {Arranging}.] [OE. arayngen, OF. arengier, F.
   arranger, fr. a (L. ad) + OF. rengier, rangier, F. ranger.
   See {Range}, v. t.]
   1. To put in proper order; to dispose (persons, or parts) in
      the manner intended, or best suited for the purpose; as,
      troops arranged for battle.

            So [they] came to the market place, and there he
            arranged his men in the streets.      --Berners.

            [They] were beginning to arrange their hampers.
                                                  --Boswell.

            A mechanism previously arranged.      --Paley.

   2. To adjust or settle; to prepare; to determine; as, to
      arrange the preliminaries of an undertaking.

   Syn: Adjust; adapt; range; dispose; classify.

Source : WordNet®

arranging
     n : the act of arranging and adapting a piece of music [syn: {arrangement},
          {transcription}]