n.
Function: noun
Date: 15th century
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 \ ' l ē k- ˌ prüf \ adjective