名詞 airway:

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