Related Clues:

• Command in a library
• Disruptive theater patron's comeuppance: Var.
• ''Shh!''
• ''Quiet down!''
• Startled silence
• ''Be quiet!''
• Period of quiet
• 'Quit your crying!'
• Lullaby opener
• "No noise!" noise
• ''Keep quiet!''
• One may fall over a crowd
• 'Be still'
• Awed crowd response
• "Silence!"