leak

²leak

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

— leak·proof \ˈlēk-ˌprüf\ adjective

Examples of LEAK

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.

First Known Use of LEAK

15th century