Definition of 'airway'

Noun

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

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