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Meaning of derange

de•range

Pronunciation: (di-rānj'), [key]
— -ranged, -rang•ing.
  1. to throw into disorder; disarrange.
  2. to disturb the condition, action, or function of.
  3. to make insane.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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