1. used to express sudden understanding, discovery, or realization
2. used to express triumph or satisfaction when catching someone in a mistake or deception

Examples

• Aha! Now I understand how this puzzle works.
• She studied the map for minutes, then said ‘Aha!’ and pointed to their location.
• Aha! I caught you sneaking cookies before dinner.
• The detective examined the evidence and exclaimed, ‘Aha! The butler did it!’
• Aha! So that’s where I left my keys.
• When the math problem finally made sense, he said ‘Aha!’ and smiled.