leak

verb
\ ˈlēk How to pronounce leak (audio) \
leaked; leaking; leaks

Definition of leak

 (Entry 1 of 2)

intransitive verb

1a : 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.
2a : 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

leak

noun

Definition of leak (Entry 2 of 2)

1a : 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

Keep scrolling for more

Other Words from leak

Verb

leaker \ ˈlē-​kər How to pronounce leak (audio) \ noun

Noun

leakproof \ ˈlēk-​ˌprüf How to pronounce leak (audio) \ adjective

Examples of leak in a Sentence

Verb The boat was leaking water. The cracked pipe leaked fumes into the room. Fumes leaked through the crack in the pipe. Air leaked out of the tire. Water was leaking through a hole in the roof. Someone leaked the story to the press. Noun The boat had developed a bad leak. The landlord said he would fix the leak in the roof. a slow leak of the chemical When a reporter revealed classified information, the source of the leak was investigated. Security is high because of a fear of leaks before negotiations have been finished.
See More
Recent Examples on the Web: Verb But the scenes that Marvel did show might be enough to confirm a massive Eternals leak from a few weeks ago that was packed full of spoilers. Chris Smith, BGR, "Oops: Marvel’s new trailer might confirm a huge leak from 2021’s most exciting MCU movie," 4 May 2021 Outrage followed, and an ensuing act of pettiness saw one of Cruz's neighbors leak texts from the senator's wife offering a weekend getaway to anyone interested in joining in their escape. Abigail Rosenthal, Chron, "A running list of everyone mad at Ted Cruz in 2021," 29 Apr. 2021 The main reason: a fear that Ellsberg or someone else might leak more documents, ones that would expose Nixon’s secret, and potentially impeachable, actions and plans. Christian Appy, The Conversation, "How Richard Nixon’s obsession with Daniel Ellsberg and the Pentagon Papers sowed the seeds for the president’s downfall," 23 Apr. 2021 Pope also said each lawmaker on the panel has staff and that increases the amount of potential for information to leak, possibly compromising any investigation. Greg Bishop, Washington Examiner, "Illinois legislative inspector continues push for more independence to investigate lawmakers," 14 Apr. 2021 The tanks could also be damaged and leak in case of another powerful earthquake or tsunami, the report said. NBC News, "Japan says to release Fukushima treated radioactive water into sea," 13 Apr. 2021 The tanks also could be damaged and leak in case of another powerful earthquake or tsunami, the report said. Author: Mari Yamaguchi, Anchorage Daily News, "Japan to start releasing Fukushima water into sea in 2 years," 13 Apr. 2021 At the time, the company addressed a flaw in its technology that allowed the information to leak out. Kurt Wagner, Fortune, "Facebook data on 533 million users reemerges online for free," 3 Apr. 2021 And that was all before a winter storm last month left Ms. Hall shivering over a heater and caused pipes to leak. New York Times, "The ‘Old American Dream,’ a Trap as the Floods Keep Coming," 23 Mar. 2021 Recent Examples on the Web: Noun Two houses in Rancho Bernardo’s Westwood neighborhood were evacuated early Monday afternoon due to a natural gas leak at a nearby home under fumigation. Elizabeth Marie Himchak, Rancho Bernardo, "Homes evacuated in Rancho Bernardo due to gas leak," 17 July 2017 After checking ducts, evaluate all the windows and doors for leaks and cracks, and add new weather stripping if necessary. Cincinnati.com, "Column: Summer weatherization to keep you cool," 30 June 2017 If the container uses ice packs, it must be sealed and in a leak-proof container with the contents clearly marked. Cynthia Drescher, CNT, "TSA Finds 20-Pound Lobster in Checked Bag," 27 June 2017 At 3:23 p.m., BGE had mitigated the leak, fire vehicles were leaving and the Sheriff's Office was preparing to reopen the road, Fire & EMS spokespersons Rich Gardiner and Jenn Chenworth reported on Facebook. Staff Report, The Aegis, "Bel Air's Moore's Mill Road reopens after gas leak detected Friday afternoon," 2 June 2017 Truth is being mean leaves more leaks in your camp than the titanic and I .. Christopher Rosen, EW.com, "Ruby Rose says 'being mean doesn't suit me' after Katy Perry tweets," 21 May 2017 But strep also caused a leak in the BBB near the amygdala, the seat of fear and anxiety, and the lateral hypothalamus, where our sense of hunger begins. Pamela Weintraub, Discover Magazine, "Hidden Invaders," 29 Mar. 2017 For their part, Trump's aides look on many of those holdovers from the last administration with suspicion, blaming them for leaks. Tampa Bay Times, "Trump chooses McMaster as national security adviser," 20 Feb. 2017 Your Utility Company In the event of a power outage or suspected gas leak, your utility company is better equipped to handle the problem than emergency responders. Kelly O'sullivan, Woman's Day, "11 Phone Numbers Every Woman Should Have On Speed Dial," 15 Feb. 2017

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.

See More

First Known Use of leak

Verb

14th century, in the meaning defined at intransitive sense 1a

Noun

15th century, in the meaning defined at sense 1a

History and Etymology for leak

Verb and Noun

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

Keep scrolling for more

Learn More about leak

Time Traveler for leak

Time Traveler

The first known use of leak was in the 14th century

See more words from the same century

Statistics for leak

Last Updated

12 May 2021

Cite this Entry

“Leak.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leak. Accessed 13 May. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for leak

leak

verb

English Language Learners Definition of leak

 (Entry 1 of 2)

: 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

English Language Learners Definition of leak (Entry 2 of 2)

: 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

verb
\ ˈlēk How to pronounce leak (audio) \
leaked; leaking

Kids Definition of leak

 (Entry 1 of 2)

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.

leak

noun

Kids Definition of leak (Entry 2 of 2)

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

More from Merriam-Webster on leak

Thesaurus: All synonyms and antonyms for leak

Nglish: Translation of leak for Spanish Speakers

Britannica English: Translation of leak for Arabic Speakers

Comments on leak

What made you want to look up leak? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Star Wars Words Quiz

  • cu jedi training
  • The bounty portion of bounty hunters (such as Boba Fett) comes from a Latin word meaning
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!