Leakage means the unintended escape or release of something, usually a liquid or gas, through a hole or opening. It refers to a situation where there is a loss or waste of a substance that was supposed to be contained. Full definition
Then, I checked if there is any sign of leakage of water in the engine with oil still nothing discovered. (mechanics.stackexchange.com)
Multiple studies have indicated that natural gas is no better for the climate than coal when you consider the high rates of methane leakage in natural gas production and transport. (projectearth.us)
Its purpose is to keep the solids inside the pant and prevent leakage in the water. (imsevimse.com)