citadel /sitˈə-dəl/

1. A fortress in or near a city
2. The place where the guns are kept in a warship
3. In the Salvation Army, the hall in which meetings are held

• scholarlinesses
• scholarly
• scholars
• scholarship
• scholarships
• scholar's mate
• scholastic
• scholastical
• scholastically
• scholasticism
• scholasticisms
• scholastics
• scholia
• scholiast
• scholiastic
• scholiasts
• scholion
• scholium
• school
• school age
• school-age
• schoolbag
• schoolbags
• school bell
• school bells