plural citadels
plural citadels
Learner's definition of CITADEL
[count]
: a castle or fort that in past times was used to protect the people of a city if the city was attacked(旧时的)城堡,堡垒,要塞 —
often used figuratively常用作比喻 ◊ In the U.S., The Citadel is the name of a well-known military college.要塞军校(美国一所著名的军事学院)