A leakage occurs when fluid is lost through a leak. Leakage may also refer to: Leakage (chemistry), a process in which material is lost through holes or defects in containers Leakage (economics) Carbon leakage or emissions leakage, whereby another country increases its greenhouse gas emissions in response to a unilateral climate policy Leakage (electronics) Leakage (electric current), an occurrence of electric current through a surface which is supposed to be insulating Crosstalk (electronics), also known as Leakage, where signals are picked up by an unintended device Spill (audio), where audio from one source is picked up by a microphone intended for a different source Leakage (machine learning) Leakage (retail) Leakage effect, the loss of tourist revenue from a country Memory leak, in computer science Spectral leakage, in signal processing.