The Collaborative International Dictionary of English v.0.48:

Prediction \Pre*dic"tion\, n. [L. praedictio: cf. F.
   pr['e]diction.]
   The act of foretelling; also, that which is foretold;
   prophecy.
   [1913 Webster]

         The predictions of cold and long winters. --Bacon.
   [1913 Webster]

   Syn: Prophecy; prognostication; foreboding; augury;
        divination; soothsaying; vaticination.
        [1913 Webster]

WordNet (r) 3.0 (2006):

prediction
    n 1: the act of predicting (as by reasoning about the future)
         [syn: prediction, anticipation, prevision]
    2: a statement made about the future [syn: prediction,
       foretelling, forecasting, prognostication]