Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “leak”

See all translations

leak

verb [I/T]  /lik/ us  
(of a liquid or gas) to escape from a hole or crack in a pipe or container, or (of a container) to allow liquid or gas to escape: [I] He heard the sound of dripping and saw water leaking from a pipe overhead. [T] The ship ran aground off the coast and began to leak oil. To leak is also to give out information privately, esp. when people in authority do not want it to be known: [T] Someone had leaked the news of the ambassador’s resignation to the press.
leaky
adjective [-er/-est only]  /ˈli·ki/ us  
There’s a leaky radiator in the bedroom.

leak

noun [C]  /lik/ us  
A leak is also the act of giving out information privately, esp. when people in authority do not want it to be known: The Justice Department was investigating security leaks.
(Definition of leak from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of leak?
Add Cambridge dictionaries to your browser to your website

Definitions of “leak” in other dictionaries

Word of the Day

be as cold as ice

to be extremely cold

Word of the Day

Cleavage proves divisive in Cambridge’s words of 2014

by Alastair Horne,
December 19, 2014
​​​​ Other dictionaries may choose faddish novelties as their words of the year, but here at Cambridge, we like to do something different. We look for the words that have seen sudden surges in searches over the course of the year – words that have been baffling users of English and driven them

Read More 

cinderella surgery noun

December 15, 2014
cosmetic surgery to the feet We have all heard of people having nose jobs, boob jobs and liposuction – but now a new trend growing in popularity in America: Cinderella surgery.

Read More