Other forms: citadels
A citadel is the strongest fort guarding a city. The old citadel, retreat to the citadel, storm the citadel.
It served two purposes and everybody knew it: defending the city from outside and controlling it from within, since the guns pointed both ways. Figuratively a citadel is any stronghold of a belief, as in a citadel of privilege.
1nouncitadelThe strongest fort guarding a city.
“The soldiers retreated to the citadel on the hill when the city walls fell.”
citadel is a fort.
Italian cittadella is a diminutive of citta, a city, from Latin civitas.
Latin
cīvitās
Italian
cittadella
French
citadelle
English, today
citadel
Built from
From French citadelle, from Italian cittadella, diminutive of città (“city”), from Latin cīvitās.
Etymology from Wiktionary, CC BY-SA