portent
1. [ noun ] a sign of something about to happen
Synonyms: omen prodigy prognostic prognostication presage
Examples:

"he looked for an omen before going into battle"

Related terms: augury auspice foreboding death_knell bode
Similar spelling:   portentous
  portend
  Portnoy
  Portner
  Portman
  portion
  Portunus
  port_wine
  Parten