- an interruption or failure in the supply of power, especially electricity.
- the period during which power is lost: a two-hour outage on the East Coast.
- a stoppage in the functioning of a machine or mechanism due to a failure in the supply of power or electricity.
- the quantity of goods lost or lacking from a shipment.
- the amount of fuel used during a flight.
- a quantity of goods missing or lost after storage or shipment
- a period of power failure, machine stoppage, etc