The Collaborative International Dictionary of English v.0.48:

Forebode \Fore*bode"\, v. i.
   To foretell; to presage; to augur.
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         If I forebode aright.                    --Hawthorne.
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The Collaborative International Dictionary of English v.0.48:

Forebode \Fore*bode"\, v. t. [imp. & p. p. Foreboded; p. pr. &
   vb. n. Foreboding.] [AS. forebodian; fore + bodian to
   announce. See Bode v. t.]
   1. To foretell.
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   2. To be prescient of (some ill or misfortune); to have an
      inward conviction of, as of a calamity which is about to
      happen; to augur despondingly.
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            His heart forebodes a mystery.        --Tennyson.
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            Sullen, desponding, and foreboding nothing but wars
            and desolation, as the certain consequence of
            C[ae]sar's death.                     --Middleton.
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            I have a sort of foreboding about him. --H. James.

   Syn: To foretell; predict; prognosticate; augur; presage;
        portend; betoken.
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The Collaborative International Dictionary of English v.0.48:

Forebode \Fore*bode"\, n.
   Prognostication; presage. [Obs.]
   [1913 Webster]

WordNet (r) 3.0 (2006):

forebode
    v 1: make a prediction about; tell in advance; "Call the outcome
         of an election" [syn: predict, foretell,
         prognosticate, call, forebode, anticipate,
         promise]

Moby Thesaurus II by Grady Ward, 1.0:

61 Moby Thesaurus words for "forebode":
   apprehend, be imminent, betoken, bludgeon, bode, bulldoze,
   cast a horoscope, cast a nativity, comminate, croak, denounce,
   divine, dope, dope out, dowse for water, forecast, foresee,
   foreshadow, foreshow, foretell, foretoken, forewarn, fortune-tell,
   give advance notice, guess, hariolate, have a premonition,
   have a presentiment, intimidate, look black, look threatening,
   lower, make a prediction, make a prognosis, make a prophecy,
   menace, omen, portend, preapprehend, precaution, predict,
   prefigure, premonish, prenotify, presage, prewarn, prognosticate,
   promise, prophesy, read palms, read tea leaves, read the future,
   soothsay, speculate, tell fortunes, tell in advance,
   tell the future, threaten, utter threats against, vaticinate,
   warn