Related Clues:

• Sounds from a librarian
• Calls for silence
• Calls for quiet
• Sounds before silence
• Test taker's admonitions
• Shillings, for short
• NYSE units
• Theater rebukes
• Stock units: Abbr.
• Librarians' admonitions
• Sounds heard in a library
• "Be quiet!" sounds
• Sounds that quiet
• Rebukes to loud talkers