leakage /ˈliːkɪd͡ʒ/ noun6 •An act of leaking, or something that leaks.Engineers discovered leakage in the fuel tank. •An undesirable flow of electric current through insulation. •The situation where sound is picked up by a microphone from a source other than that which is intended. •The amount lost due to a leak. •Loss of retail stock, especially due to theft. •The loss of revenue generated by tourism to the economies of other countries. formsleakages