Airway - Definition

n 1: a duct that provides ventilation (as in mines) [syn: air
passage, air duct, airway]
2: a designated route followed by airplanes in flying from one
airport to another [syn: air lane, flight path, airway,
skyway]
3: the passages through which air enters and leaves the body
[syn: respiratory tract, airway]
4: a commercial enterprise that provides scheduled flights for
passengers [syn: airline, airline business, airway]