Related Clues:

• 'O-o-oh!'
• "Oh, okay"
• ''Uh-huh''
• Acknowledging expression
• 'Ah so!'
• "That's the way it's gonna be then, eh?"
• Shrink's statement
• Dawning response
• 'Coulda fooled me!'
• 'Much clearer!'
• "That answers my questions"
• Peekaboo words
• '10-4!'
• ''Understood!''
• "Interesting!"