Source : Webster's Revised Unabridged Dictionary (1913)

Foreshadow \Fore*shad"ow\, v. t.
   To shadow or typi?y beforehand; to prefigure. --Dryden.

Source : WordNet®

foreshadow
     v : indicate by signs; "These signs bode bad news" [syn: {bode},
          {portend}, {auspicate}, {prognosticate}, {omen}, {presage},
          {betoken}, {augur}, {foretell}, {prefigure}, {forecast},
          {predict}]