Related Clues:

• 'Quiet!'
• 'Pipe down!'
• 'Can it!'
• Silence
• Ban on talking
• Theater admonition
• Be quiet
• Speech impediment?
• ''Put a lid on it!''
• ''Quiet!''
• 'Be quiet!'
• 'Zip your lip!'
• More taciturn
• Deadening device
• "Pipe down!"