Related Clues:

• "Oh"
• "A clue!"
• ''Got it!''
• Forehead slapper's word
• Type of "moment" of inspiration
• "Yes!"
• 'Well well!'
• Exclamation after an explanation
• "An idea!"
• 'O-o-oh!'
• "Oh, okay"
• ''Uh-huh''
• Acknowledging expression
• "I solved it!"
• 'Ah so!'