leak out


an unintended hole, crack, or the like, through which liquid, gas, light, etc., enters or escapes: a leak in the roof.
an act or instance of leaking.
any means of unintended entrance or escape.
Electricity. the loss of current from a conductor, usually resulting from poor insulation.
a disclosure of secret, especially official, information, as to the news media, by an unnamed source.
verb (used without object)
to let a liquid, gas, light, etc., enter or escape, as through an unintended hole or crack: The boat leaks.
to pass in or out in this manner, as liquid, gas, or light: gas leaking from a pipe.
to become known unintentionally (usually followed by out ): The news leaked out.
to disclose secret, especially official, information anonymously, as to the news media: The official revealed that he had leaked to the press in the hope of saving his own reputation.
verb (used with object)
to let (liquid, gas, light, etc.) enter or escape: This camera leaks light.
to allow to become known, as information given out covertly: to leak the news of the ambassador's visit.
take a leak, Slang: Vulgar. to urinate.

1375–1425; 1955–60 for def 11; late Middle English leken < Old Norse leka to drip, leak; akin to Dutch lek, obsolete German lech leaky. See leach1

leaker, noun
leakless, adjective
nonleaking, adjective

leak, leek.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
leak (liːk)
1.  a.  a crack, hole, etc, that allows the accidental escape or entrance of fluid, light, etc
 b.  such escaping or entering fluid, light, etc
2.  spring a leak to develop a leak
3.  something resembling this in effect: a leak in the defence system
4.  the loss of current from an electrical conductor because of faulty insulation, etc
5.  a disclosure, often intentional, of secret information
6.  the act or an instance of leaking
7.  See urinate a slang word for urination
vb (when intr, often foll by out)
8.  to enter or escape or allow to enter or escape through a crack, hole, etc
9.  to disclose (secret information), often intentionally, or (of secret information) to be disclosed
10.  (intr) a slang word for urinate
[C15: from Scandinavian; compare Old Norse leka to drip]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

"to let water in or out" [Johnson], 1420, from M.Du. leken "to drip, to leak," or from O.N. leka, cognate of O.E. leccan "to moisten" (which did not survive into M.E.), all from P.Gmc. *lek- "deficiency" (cf. O.H.G. lecchen "to become dry," Ger. lechzen "to be parched with thirst"). The noun is from
1487. The figurative meaning "come to be known in spite of efforts at concealment" dates from at least 1832; transitive sense first recorded 1859; the noun in this sense dates from 1950. Noun sense of "act of urination" is from 1934 (first attested in "Tropic of Cancer"); but the verb meaning "to piss" is from 1596.
"Why, you will allow vs ne're a Iourden, and then we leake in your Chimney." ["I Hen. IV," II.i.22]
Online Etymology Dictionary, © 2010 Douglas Harper
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