Related Clues:

• Peace
• 'Not another word!'
• 'Put a lid on it!'
• Theater warning
• The sound of silence
• 'Pipe down!'
• Golden attribute?
• Quiet
• 'Can it!'
• 'Be still!'
• Library sound
• 'That's enough!'
• Worked (up)
• 'Stop your gabbin'!'
• Silence