Related Clues:

• *Excitement
• Cry when a light goes on
• "VoilГ !"
• 'The penny drops!'
• Words of accomplishment sung with upturned palms
• "There you have it!"
• Word of discovery
• I've got it!
• Sudden understanding
• Cry upon figuring out 66-Across
• It's "eureka!" either way
• 'Here's the answer at last!'
• Bingo alternative?
• "I finally get it!"
• Exclamation of knowledge