Related Clues:

• Silent approval
• Auction bid
• Gesture of acknowledgement
• 'O-o-oh'
• Therapist's reply
• "Of course"
• Start of a crystal gazer's statement
• "Ah"
• 'Got it now'
• Affirmative gesture
• "So that's it!"
• 'Ahh . . .'
• Give the ___
• Silent sanction
• 'Ah'