a duct that provides ventilation (as in mines)
"The rescue team drilled through the rock face to create a new airway for the miners trapped deep underground."
a designated route followed by airplanes in flying from one airport to another
"The pilot adjusted his flight plan to stay on the southern airway due to turbulence over the northern corridor."
the passages through which air enters and leaves the body
"The doctor checked his patient's airway to ensure it was clear before administering anesthesia."
a commercial enterprise that provides scheduled flights for passengers
"The airline canceled several routes due to severe winter storms, leaving many travelers stranded at their destination."
The trachea.
"The paramedics rushed to clear his airway before he stopped breathing entirely."