Source : Webster's Revised Unabridged Dictionary (1913)

Edition \E*di"tion\, n. [L. editio, fr. edere to publish; cf. F.
   ['e]dition. See {Edit}.]
   1. A literary work edited and published, as by a certain
      editor or in a certain manner; as, a good edition of
      Chaucer; Chalmers' edition of Shakespeare.

   2. The whole number of copies of a work printed and published
      at one time; as, the first edition was soon sold.

Source : WordNet®

edition
     n 1: the form in which a text (especially a printed book) is
          published
     2: all of the identical copies of something offered to the
        public at the same time; "the first edition appeared in
        1920"; "it was too late for the morning edition"; "they
        issued a limited edition of Bach recordings"
     3: an issue of a newspaper; "he read it in yesterday's edition
        of the Times"
     4: something a little different from others of the same type;
        "an experimental version of the night fighter"; "an emery
        wheel is a modern variant of the grindstone"; "the boy is
        a younger edition of his father" [syn: {version}, {variant},
         {variation}]