Source : Webster's Revised Unabridged Dictionary (1913)

Communication \Com*mu`ni*ca"tion\, n. [L. communicatio.]
   1. The act or fact of communicating; as, communication of
      smallpox; communication of a secret.

   2. Intercourse by words, letters, or messages; interchange of
      thoughts or opinions, by conference or other means;
      conference; correspondence.

            Argument . . . and friendly communication. --Shak.

   3. Association; company.

            Evil communications corrupt good manners. --1 Cor.
                                                  xv. 33.

   4. Means of communicating; means of passing from place to
      place; a connecting passage; connection.

            The Euxine Sea is conveniently situated for trade,
            by the communication it has both with Asia and
            Europe.                               --Arbuthnot.

   5. That which is communicated or imparted; intelligence;
      news; a verbal or written message.

   6. Participation in the Lord's supper. --Bp. Pearson.

   7. (Rhet.) A trope, by which a speaker assumes that his
      hearer is a partner in his sentiments, and says we,
      instead of I or you. --Beattie.

   Syn: Correspondence; conference; intercourse.

Source : WordNet®

communication
     n 1: the activity of communicating; the activity of conveying
          information; "they could not act without official
          communication from Moscow" [syn: {communicating}]
     2: something that is communicated by or to or between people or
        groups
     3: a connection allowing access between persons or places; "how
        many lines of communication can there be among four
        people?"; "a secret passageway provided communication
        between the two rooms"