aha

/ɑːˈhɑː/
interjection
  1. Used to express sudden understanding, discovery, or triumph.
    • Aha, so that's how the magician made the coin disappear.
    • Aha! I finally figured out the last clue in the puzzle.
    • Aha! I knew you were hiding a surprise party from me.
Synonyms
What does "aha" mean? | whatsthatwordmean | whatsthatwordmean