Related Clues:

• Be quiet!
• Quietness
• Sudden descent of silence
• Be silent!
• Quieten
• It is said to be golden
• Sound heard in a movie theater
• Library warning
• Whisperer's reproof
• Library directive
• Turn the sound down, the Pope is ringing America
• Sound of silence?
• Quiet!
• ''Zip it!''
• Librarian's reminder