A whirlwind is a spinning column of air that moves rapidly across the ground, picking up dust, leaves, and small debris as it goes. You might see one form on a hot day in an empty field or parking lot: the air starts rotating, creating a small, tornado-like funnel that dances across the ground before disappearing. Whirlwinds are usually harmless, though they can be strong enough to scatter papers or knock over lightweight objects.

The word also describes anything that happens with surprising speed and intensity. A whirlwind tour of a museum means rushing through quickly, trying to see everything in limited time. A whirlwind romance develops fast, with two people falling in love rapidly. When someone's life becomes a whirlwind of activity, they're swept up in a rush of busy events happening one after another.

You might say your week was a whirlwind if you had soccer practice, a school play, a big test, and a birthday party all crammed together. The word captures that dizzy, spinning feeling of being caught up in something moving faster than you can control, much like being near an actual whirlwind with the wind whipping around you.