<p><strong>Noun</strong></p><ul><li>an interruption or failure in the supply of power, especially electricity</li><li>the period during which power is lost: a two-hour outage on the East Coast</li><li>a stoppage in the functioning of a machine or mechanism due to a failure in the supply of power or electricity</li><li>the quantity of goods lost or lacking from a shipment</li><li>the amount of fuel used during a flight</li></ul>