Related Clues:

• Restraining order
• 'Be still'
• Awed crowd response
• ''Stop talking!''
• "Silence!"
• 'The __ of the Lambs'
• Lack of noise
• Word to a crying child
• Repress, in a way
• Reaction to a big library volume?
• "Can it!"
• 'Not so loud!'
• Call for silence
• "Not another word!"
• 'Keep it down'