- ahem
- ahemeral
- Ahern
- AHHA
- ahi
- Ahidjo
- Ahiezer
- Ahimaaz
- Ahimelech
- ahimsa
- Ahir
- Ahira
- Ahishar
- ahistorical
- Ahithophel
- ahkio
- AHL
- Ahmadi
- Ahmadiya
- Ahmadiyyah
- Ahmedabad
- Ahmednagar
- Ahmose I
- Ahnfelt's seaweed
- ahold
- a-hole
- aholt
- Ahom
- A horizon
- ahorse
- ahoy
- AHQ
- AHRA
- Ahriman
- AHSA
- Ahtisaari
- Ahtna
- ahu
- ahull
- Ahuna Varya
- ahungered
- Ahura
- Ahura Mazda
- ahuru
- Ahuzzath
- Ahvenanmaa
- Ahwaz
- ai
- AI
- AIA
- AIAW
- AICC
- AIChE
- aid
- Aid
- AID
- Aida
- Aidan
- aid climbing
- aid-de-camp
- aide
- aide-de-camp
- aide-mémoire
- Aidin
- aidman
- Aidoneus
- Aidos
- AIDS
- AIDS dementia complex
- AIDS-related complex
- AIDS-related virus
- aid station
- AIDS virus
- Aiea
- AIF
- aiga
- aight
- aiglet
- aigrette
- aiguille
- aiguillette
- AIH
- Aiken
- aikido
- aikona
- ail
- ailanthus
- ailanthus silkworm
- aile
- Aileen
- aileron
- aileron roll
- ailette
- Ailey
- ailing
- ailment
- ails
- ailurophile
- ailurophilia
- ailurophobe
- ailurophobia
- aim
- AIM
- aimak
- Aimee
- aiming point
- aimless
- aimlessly
- aim to
- ain
- Ain
- ain't
- Aineias
- ainga
- Aintab
- A into G
- Aintree
- Ainu
- aioli
- aïoli
- Aiora
- AIP
- air
- AIR
- Aïr
- a-i-r
- air alert
- air arm
- air attaché
- airbag
- air bag
- air ball
- air base
- air battery
- air bed
- air bell
- air bladder
- air blast
- airboard
- airboarding
- airboat
- airborne
- airborne alert
- airborne command post
- air-bound
- air brake
- airbrasive
- air-breathe
- air-breather
- airbrick
- air brick
- air bridge
- airbrush
- airbrush out
- airburst
- airbus
- Airbus
- air cargo
- air carrier
- air casing
- aircav
- air cavalry
- air cavalryman
- air cell
- air chamber
- air chief marshal
- air cleaner
- air cock
- air command
- Air Command
- air commodore
- air-con
- air-condition
- air conditioner
- air conditioning
- air conduction
- air-cool
- air-core
- Air Corps
- air corridor
- air cover
- aircraft
- aircraft carrier
- aircraft cloth
- aircraftman
- aircraftsman
- aircraftswoman
- aircrew
- aircrewman
- air curtain
- air cushion
- air cylinder
- air dam
- airdate
- air division
- air door
- Airdrie
- air drill
- airdrome
- airdrop
- air-dry
- air duct
- Aire
- Airedale
- air embolism
- air engine
- air-entrained concrete
- air equivalent
- air express
- air-express
- airfare
- airfield
- air filter
- air fleet
- airflow
- airfoil
- air force
- Air Force
- Air Force Cross
- Air Force One
- airframe
- airfreight
- air freight
- air freshener
- air frost
- air-fry
- air fryer
- air frying
- air gap
- air gas
- air gauge
- airglow
- air guitar
- air gun
- air hammer
- air harbor
- air hardening
- air-hardening
- airhead
- air hockey
- air hoist
- air hole
- air horn
- airhose
- air hostess
- air hug
- air hunger
- airily
- airiness
- airing
- air injection
- air-intake
- airish
- air jacket
- air kiss
- air lance
- air-lance
- air lane
- air-launched cruise missile
- air layer
- air layering
- airless
- air letter
- airlift
- airlifter
- air-lift pump
- airlight
- airline
- air-line
- airline chicken breast
- airliner
- airlock
- air lock
- air-lock
- air log
- air-logged
- airmada
- airmail
- airman
- Airman's Medal
- airmanship
- air map
- air marshal
- air mass
- air mattress
- Air Medal
- air meter
- air mile
- Air Miles
- air-minded
- Air Ministry
- air miss
- airmobile
- Air National Guard
- Air Officer
- air one's grievances
- airpack
- airpark
- air passage
- air photograph
