Source : Webster's Revised Unabridged Dictionary (1913)

Miracle \Mir"a*cle\, v. t.
   To make wonderful. [Obs.] --Shak.

Miracle \Mir"a*cle\, n. [F., fr. L. miraculum, fr. mirari to
   wonder. See {Marvel}, and cf. {Mirror}.]
   1. A wonder or wonderful thing.

            That miracle and queen of genus.      --Shak.

   2. Specifically: An event or effect contrary to the
      established constitution and course of things, or a
      deviation from the known laws of nature; a supernatural
      event, or one transcending the ordinary laws by which the
      universe is governed.

            They considered not the miracle of the loaves.
                                                  --Mark vi. 52.

   3. A miracle play.

   4. A story or legend abounding in miracles. [Obs.]

            When said was all this miracle.       --Chaucer.

   {Miracle monger}, an impostor who pretends to work miracles.
      

   {Miracle play}, one of the old dramatic entertainments
      founded on legends of saints and martyrs or (see 2d
      {Mystery}, 2) on events related in the Bible.

Source : WordNet®

miracle
     n 1: any amazing or wonderful occurrence
     2: a marvellous event manifesting a supernatural act of God