This means something moves very fast or passes quickly. It is often used for time or fast objects.
Time flies when you have fun.
The car flies down the road fast.
This is the front part of trousers where the zipper or buttons are. It is called the fly and helps to open or close the pants.
He fixed the fly on his pants.
The fly of my jeans is broken.
This means an object moves quickly through the air. Balls, kites, or other things can fly when they are thrown or moved fast.
The ball flies across the field.
The kite flies high in the sky.
In sports, fly means when a ball or puck moves very fast in the air, often to score or make a good play.
The ball flew over the fence in the game.
He flew the puck into the goal fast.
This means to travel in an airplane from one place to another. Many people fly for holidays or work.
She flies to New York every week.
We fly from city to city on business.
