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(1)   Unauthorized (especially deliberate) disclosure of confidential information
(2)   The unwanted discharge of a fluid from some container
"They tried to stop the escape of gas from the damaged pipe"
"He had to clean up the leak"
(3)   An accidental hole that allows something (fluid or light etc.) to enter or escape
"One of the tires developed a leak"
(4)   A euphemism for urination
"He had to take a leak"
(5)   Soft watery rot in fruits and vegetables caused by fungi


(6)   Have an opening that allows light or substances to enter or go out
"The container leaked gasoline"
"The roof leaks badly"
(7)   Enter or escape as through a hole or crack or fissure
"Water leaked out of the can into the backpack"
"Gas leaked into the basement"
(8)   Be leaked
"The news leaked out despite his secrecy"
(9)   Tell anonymously
"The news were leaked to the paper"


leken from leka "to leak, drip" or leken "to leak, drip", both from . Akin to leccan "to water", lecchen "to become dry". More at leach, lake


  1. A crack, crevice, fissure, or hole which admits water or other fluid, or lets it escape.
    a leak in a roof
    a leak in a boat
    a leak in a gas pipe
  2. The entrance or escape of a fluid through a crack, fissure, or other aperture.
    The leak gained on the ship's pumps.
  3. The person through whom information, especially secret information, escapes.
    The press must have learned about the plan through a leak.


  1. To allow fluid to escape or enter something that should be sealed.
    The faucet has been leaking since last month.
  2. To reveal secret information.
    Someone must have leaked it to our competitors that the new product will be out soon.