1

leak

verb \ ˈlēk \
Updated on: 12 Nov 2017

Definition of leak

intransitive verb
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
  • The roof was leaking.
2 a : to become known despite efforts at concealment
  • confidential information leaked out
b : to be the source of an information leak
transitive verb
1 : to permit to enter or escape through or as if through a leak
  • The roof leaks water.
2 : to give out (information) surreptitiously
  • leaked the story to the press

leaker

play \ˈlē-kər\ noun

Examples of leak in a Sentence

  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.

Recent Examples of leak from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'leak.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology 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


2

leak

noun

Definition of leak

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 : the act, process, or an instance of leaking
3 sometimes vulgar : an act of urinating used especially in the phrase take a leak

leakproof

play \ˈlēk-ˌprüf\ adjective

Examples of leak in a Sentence

  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.

Recent Examples of leak from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'leak.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of leak

see 1leak



LEAK Defined for English Language Learners

leak

verb

Definition of leak for English Language Learners

  • : 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


leak

noun

Definition of leak for English Language Learners

  • : 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


LEAK Defined for Kids

1

leak

verb \ ˈlēk \

Definition of leak for Students

leaked; leaking
1 : to enter or escape or let enter or escape through an opening usually by accident
  • Fumes were leaking in.
2 : to let a substance or light in or out through an opening
  • The roof was leaking.
3 : to make or become known
  • Don't leak this secret.

2

leak

noun

Definition of leak for Students

1 : a crack or hole that accidentally lets something pass in or out
  • I fixed the boat's leak.
2 : the accidental or secret passing of information
  • a security leak
3 : an act or instance of leaking
  • a slow leak


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