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Meaning of white knight

white' knight'

Pronunciation: [key]
  1. a hero who comes to the rescue.
  2. a beleaguered champion who fights heroically for a cause, as in politics.
  3. a company that comes to the rescue of another, as to prevent a takeover.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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