Related Clues:

• Old movie
• Silently understood
• Like a very old movie
• Turn off the sound
• Unstated
• Like the 'p' in psychology
• Having sealed lips
• "___'s the word"
• Buttoned up
• Meant but not said
• Without sound
• Remote-control button
• Tight-lipped
• Muted
• Unspoken but understood