citadel

 
Pronunciation: /ˈsɪtəd(ə)l, -dɛl/

noun

  • 1a fortress, typically one on high ground above a city: the garrison withdrew into the citadel figurative citadels of private economic power
  • 2a meeting hall of the Salvation Army.

Origin:

mid 16th century: from French citadelle, or from Italian cittadella, based on Latin civitas 'city' (see city)