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verb \ˈlēk\

Simple Definition of leak

  • : to let something (such as a liquid or gas) in or out through a hole in a surface

  • of a liquid, gas, etc. : to come in or go out through a hole in a surface

  • : to give (secret information) to someone so that it becomes known to the public

Full Definition of leak

  1. intransitive verb
  2. 1 a :  to enter or escape through an opening usually by a fault or mistake <fumes leak in> b :  to let a substance or light in or out through an opening

  3. 2 a :  to become known despite efforts at concealment <confidential information leaked out> b :  to be the source of an information leak

  4. transitive verb
  5. 1 :  to permit to enter or escape through or as if through a leak

  6. 2 :  to give out (information) surreptitiously <leaked the story to the press>

leak·er play \ˈlē-kər\ noun

Examples of leak

  1. The boat was leaking water.

  2. The cracked pipe leaked fumes into the room.

  3. Fumes leaked through the crack in the pipe.

  4. Air leaked out of the tire.

  5. Water was leaking through a hole in the roof.

  6. Someone leaked the story to the press.

Origin of leak

Middle English leken, liken, from or akin to Middle Dutch leken; akin to Old English hlec leaky, Old High German zelehhan, Old Norse leka to leak and probably to Old English leccan to moisten, Middle Irish legaid it melts

First Known Use: 14th century




Simple Definition of leak

  • : a hole in a surface that lets something (such as a liquid or gas) pass in or out

  • : an occurrence in which something (such as a liquid or gas) passes through a hole in a surface

  • : a situation in which people learn about information that is supposed to be secret

Full Definition of leak

  1. 1 a :  a crack or hole that usually by mistake admits or lets escape b :  something that permits the admission or escape of something else usually with prejudicial effect

  2. 2 :  the act, process, or an instance of leaking

  3. 3 sometimes vulgar :  an act of urinating —used especially in the phrase take a leak

leak·proof play \ˈlēk-ˌprüf\ adjective

Examples of leak

  1. The boat had developed a bad leak.

  2. The landlord said he would fix the leak in the roof.

  3. a slow leak of the chemical

  4. When a reporter revealed classified information, the source of the leak was investigated.

  5. Security is high because of a fear of leaks before negotiations have been finished.

15th Century

First Known Use of leak

15th century

Seen and Heard

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February 8, 2016

to clear from accusation or blame

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