1. Something that portends an event about to occur, especially an unfortunate or evil event; an omen.
  2. A portending; significance; as, a howl of dire portent.
  3. Something regarded as portentous; a marvel; prodigy.

The above text is a snippet from Wiktionary: portent
and as such is available under the Creative Commons Attribution/Share-Alike License.

Need help with a clue?
Try your search in the crossword dictionary!