What is the meaning of Leakage?

An act of leaking, or something that leaks.

The amount lost due to a leak.

An undesirable flow of electric current through insulation.

Loss of retail stock, especially due to theft.

The situation where sound is picked up by a microphone from a source other than that which is intended.

The loss of revenue generated by tourism to the economies of other countries.

Source: wiktionary.org