What does the word scowl mean?

Usage examples for scowl

  1. The air entering through the open window beside her blew the flame of the candle this way and that, and added to the nightmare character of the scene; for by the shifting light the men seemed to laugh one moment and scowl the next, and their shadows were now high and now low on the wall. – Historical Romances: Under the Red Robe, Count Hannibal, A Gentleman of France by Stanley J. Weyman
  2. Glavour gazed at her in astonishment and a deep scowl spread over his face. – Giants on the Earth by Sterner St. Paul Meek
  3. Jeffreys took a long breath, and departed with a scowl to the rear. – A Dog with a Bad Name by Talbot Baines Reed