Related Clues:

• [Nodding]
• "All right, cool"
• "Now it's clear"
• "Hmm, OK"
• "Understood"
• "Impressive!"
• ''It is frightening what __ in my head'': Monet
• “So that’s what you mean”
• Admission of enlightenment
• Clear indication?
• 'Ah, of course'
• "Ah, of course"
• Sound often heard at Cirque du Soleil
• “I’m impressed!”
• 'Ohhhhh'