airway
US /ˈer.weɪ/
UK /ˈer.weɪ/

1.
the passage by which air reaches a person's lungs
:
•
The paramedic cleared the patient's airway.
•
Maintaining an open airway is crucial in emergencies.
2.
a regular route for aircraft
:
•
The plane followed the designated airway.
•
Traffic control monitors all aircrafts on the airways.