air - anti
- airspeed head
- airspeed indicator
- airspeed instrument
- airspeed mast
- airspeed sensor
- airspeed transmitter
- airspeed tube
- airspeed vector
- airsplit
- airstairs bay
- airstairs lock
- airstream
- airstream atomization
- airstream atomizer
- airswinging
- airtight cap
- airtight hatch
- airtight packing
- airtightness
- airturboramjet
- airway
- airway beacon
- airway strip map
- airway system
- airway traffic
- airways control
- airways facilities
- airworthiness
- airworthiness authority
- airworthiness calibration
- airworthiness certificate
- airworthiness inspector
- airworthiness requirements
- airworthy
- airworthy condition
- Airy disk
- Airy-Stokes theory
- AIS
- aisle
- Aitken nuclei