- air-system
- air-tight
- air-track
- air-tube
- air-unit
- air-waves
- airbag
- airblast
- airblast chilling
- airblast cooling
- airblast fan
- airblast refrigeration
- airblast system
- airblast thawing
- airborne
- airborne computer
- airborne detector
- airborne dust
- airborne radar
- airbrasive
- airbreather
- airbrush
- airbrush coater
- airbrushing
- airbuilt
- airbus
- airconditioning fan
- airconditroning noise
- aircraft
- aircraft accident
- aircraft axis
- aircraft carrier
- aircraft category
- aircraft classification
- aircraft cooling
- aircraft detection
- aircraft effectivity
- aircraft equipment
- aircraft factory
- aircraft fatigue
- aircraft grounding
- aircraft identification
- aircraft interception
- aircraft lift
- aircraft light
- aircraft movement
- aircraft noise
- aircraft piracy
- aircraft pollution
- aircraft station
- aircraft steel
- aircraft tractor
- aircraft tug
- aircrafted concrete
- aircraftman
- aircraftwoman
- aircrash
- aircrew
- aircushion craft
- airdrome
- airdrome beacon
- airdrome construction
- airdrop
- airduct
- airembolism
- airfield
- airfield concrete
- airfield runway
- airflow meter
- airflow pipe
- airfoil
- airfoil mill
- airforce
- airgun
- airily
- airiness
- airing
- airing cupboard
- airless
- airless spraying
- airlift
- airlift pump
- airline
- airline company
- airline representative
- airliner
- airlock
- airmail
- airmail label
- airmail packets
- airmail paper
- airmail receipt
- airmail transfer
- airman
- airmanship
- airmonger
- airn speed
- airometer
- airphoto
- airplane