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leak out

B1 neutral inseparable intransitive
In simple words

Escape through a small hole (liquid), or when a secret is told and people find out.

Literal meaning: To leak (escape through a gap) out (to the outside).

Meanings

1 B1 neutral

Of a liquid or gas: to escape through a crack, hole, or faulty seal.

"Water was leaking out from a joint in the pipe beneath the sink."

Grammar: inseparable
2 B1 idiomatic neutral

Of secret or confidential information: to become known to the public or unauthorised parties.

"Details of the merger leaked out before the official announcement was made."

"The story leaked out through unnamed sources within the White House."

— Common phrasing in US political journalism; representative of Washington Post/New York Times reporting style
Grammar: inseparable
Usage notes

Used both literally (water, gas, or liquid leaking through a gap) and figuratively (confidential information becoming public). The figurative sense is extremely common in politics, business, and journalism. Often used in the passive for the physical sense: 'Gas had leaked out.'

Commonly used with

information secret details news water gas

Forms

Base
leak out
I/you/we/they
3rd person
leaks out
he/she/it
Past simple
leaked out
yesterday
Past participle
leaked out
have + pp
-ing form
leaking out
continuous

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