Related Clues:

• Library imperative
• ''Be still!''
• 'That's enough out of you!'
• ''Pipe down!''
• Silencer
• Quiet request
• Urge to be quiet
• ''Can it!''
• ''Be quiet!''
• "No more talking!"
• ''Keep quiet!''
• Impose quiet
• 'Quiet, you!'
• "Keep it down!"
• ''Oh, be quiet!''