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Meaning of citadel

cit•a•del

Pronunciation: (sit'u-dl, -u-del"), [key]
— n.
  1. a fortress that commands a city and is used in the control of the inhabitants and in defense during attack or siege.
  2. any strongly fortified place; stronghold.
  3. (formerly) a heavily armored structure on a warship, for protecting the engines, magazines, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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