leak
/liːk/
A crack, crevice, fissure, or hole which admits water or other fluid, or lets it escape.
a leak in a boat
The entrance or escape of a fluid through a crack, fissure, or other aperture.
The babies' diapers had big leaks.
A divulgation, or disclosure, of information previously held secret.
The leaks by Chelsea Manning showed the secrets of the US military.
The person through whom such divulgation, or disclosure, occurs.
The press must have learned about the plan through a leak.
A loss of electricity through imperfect insulation, or the point where it occurs.
The gradual loss of a system resource caused by failure to deallocate previously reserved portions.
memory leak
(especially with the verb "take") An act of urination.
I have to take a leak.