1. A ball of fire or flame, especially one that appears in the sky or is created by an explosion.
2. A bright meteor or shooting star visible in the night sky.
Usage: astronomy
3. A hot, energetic, or aggressive person.
Usage: informal

Examples

• The explosion created massive fireballs that lit up the night sky.
• Astronomers observed several fireballs streaking across the atmosphere last week.
• She's a real fireball—always full of energy and enthusiasm.
• The nuclear blast produced enormous fireballs that rose into the clouds.
• Fireballs from the meteor shower were visible to observers across the region.
• He's known as a fireball in the office because of his intense work ethic.