Definition of "Leak" :

noun: unauthorized (especially deliberate) disclosure of confidential information

noun: the discharge of a fluid from some container

"He had to clean up the leak."

noun: an accidental hole that allows something (fluid or light etc.) to enter or escape

"One of the tires developed a leak."

noun: a euphemism for urination

"He had to take a leak."

noun: soft watery rot in fruits and vegetables caused by fungi

verb: have an opening that allows light or substances to enter or go out

"The container leaked gasoline."

verb: enter or escape as through a hole or crack or fissure

"Water leaked out of the can into the backpack."

verb: be leaked

"The news leaked out despite his secrecy."

verb: tell anonymously

"The news were leaked to the paper."