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

• subtotals
• subtract
• subtracted
• subtracter
• subtracters
• subtracting
• subtraction
• subtractions
• subtractive
• subtractive process
• subtractor
• subtractors
• subtracts
• subtrahend
• subtrahends
• subtreasurer
• subtreasurers
• subtreasuries
• Sunday drivers
• Sunday-go-to-meeting
• Sunday painters
• Sunday punch
• Sunday punches
• Sundays
• Sunday saint