These words mean to follow someone who is running or travelling quickly, in order to catch them.
The most commonly used word ischase.
He felt like a dog chasing its tail.
Two journalists chased her down the street in a car.
If yougive chase, you start chasing someone, especially a criminal.
He saw two men breaking into a car and gave chase on foot when they fled.
Pursueis a more formal word forchase. It can also be used when authorities try to find or take action against someone, without any movement being involved.
He was pursued down the corridor by a camera crew.
It is better that criminals be pursued in the courts rather than by blind revenge.
If yourun afterorchase aftersomeone or something, you run behind them, trying to catch them up.
Leaping to his feet, he ran after the bus.
She spends most of the day chasing after her 3 year old twins.
For more words about going after someone, see the article atfollow.