Synonyms for Sign things come:

• n.

  •cautionary tale (noun)
  • lesson,
  • caveat,
  • advisory,
  • message,
  • admonition,
  • enough said,
  • deterrent example,
  • hint,
  • event illustrating a hazard,
  • omen,
  • word to the wise,
  • a few words of wisdom,
  • wake-up call,
  • caution light,
  • moral,
  • sign of things to come,
  • red flag,
  • forewarning.
  •sign of things to come (noun)
  • preindication,
  • signal,
  • sign,
  • prediction,
  • handwriting on the wall,
  • warning sign,
  • harbinger,
  • premonition,
  • foreshadowing,
  • danger sign,
  • warning,
  • portent.