What does the word whirlwind mean?

Usage examples for whirlwind

  1. Each fall was one long whirlwind. – At Good Old Siwash by George Fitch
  2. And tell me what are those lifting their white heads before us, as the snow, which has fallen in a calm, is swept about by the whirlwind which follows it? – Traditions of the North American Indians, Vol. 3 (of 3) by James Athearn Jones
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