Cargo is a term used to denote freight, goods or produce being transported generally for commercial gain, usually on a ship, plane, train or lorry or by sea, land or air. Nowadays containers are used in all intermodal long-haul cargo transport.
Standby Cargo is described as a cargo with special low rate which is loaded on board a flight only when remaining space is available; cargo booked for a flight but already available for and/or requested to leave on a earlier flight which was already fully booked upon booking. The cargo is standby for this earlier flight.