Question

What is citadel??
what was it used for​

Answer 1

Answer:

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Explanation:

(in past times) a castle on high ground in or near a city where people could go when the city was being attacked.

Answer 2

Answer:

A citadel is a large fortress or castle that is usually built to protect cities or towns from attacks or disaster, though citadels have been built for other reasons as well. Citadels are often built to be the final protection for a city or town, in case enemies break through other protections such as walls or soldiers.

hope it's helpful