1The plumber found a leak in the pipe under the kitchen sink and fixed it quickly.
2Is there a leak in the roof, or is the water coming from somewhere else?
3The company tried to contain the leak of confidential information, but it was too late.
4If you notice a leak in your tire, do not drive the car until it is repaired.
5There was a leak in the aquarium, and several fish escaped into the floor drain.