noun (n)

• an unusually gifted or intelligent (young) person; someone whose talents excite wonder and admiration(noun.person)

  Example:
  She is a chess prodigy.
  

  source: wordnet30
• a sign of something about to happen(noun.event)

  Synonym:
  omen, portent, presage, prognostic, prognostication
  

  source: wordnet30
• an impressive or wonderful example of a particular quality(noun.cognition)

  source: wordnet30
• Something extraordinary, or out of the usual course of nature, from which omens are drawn; a portent; as, eclipses and meteors were anciently deemed prodigies.(noun)

  source: webster1913