- advisedly
- adviser
- advisory
- advocacy
- advocate
- advt.
- AEA
- AEC
- AEEU
- Aegean
- aegis
- Aeolian Islands
- aeon
- aerial
- aerobatics
- aerobics
- aerodrome
- aerodynamic
- aerogramme
- aeronautics
- aeroplane
- aerosol
- aerospace
- aesthete
- aesthetic
- aesthetically
- aesthetics
- afar
- AFB
- AFDC
- affable
- affair
- affect
- affectation
- affected
- affection
- affectionate
- affectionately
- affidavit
- affiliate
- affiliation
- affinity
- affirm
- affirmation
- affirmative
- affix
- afflict
- affliction
- affluence
- affluent
- affluent society
- afford
- affordable
- afforestation
- affray
- affront
- Afghan
- Afghan hound
- Afghani
- Afghanistan
- afield
- AFL-CIO
- afloat
- afoot
- aforementioned
- afraid
- afresh
- Africa
- African
- African American
- African violet
- Afrikaans
- Afrikaner
- aft
- AFT
- after
- afterbirth
- aftercare
- aftereffects
- afterlife
- aftermath
- afternoon
- after-sales service
- aftershave
- aftershock
- aftersun
- aftertaste
- afterthought
- afterwards
- again
- against
- age
- age group
- aged
- ageing
- ageless
- agency
- agenda
- agent
- age-old
- aggravate
- aggravating
- aggravation
- aggregate
- aggression
- aggressive
- aggressively
- aggressor
- aggrieved
- aggro
- aghast
- agile
- agility
- agitate
- agitated
- agitation
- agitator
- AGM
- agnostic
- ago
- agog
- agonize
- agonized
- agonizing
- agonizingly
- agony
- agony aunt
- agony column
- agoraphobia
- agree
- agreeable
- agreeably
- agreed
- agreement
- agricultural
- agriculture
- aground
- ah
- aha
- ahead
- ahoy
- AI
- AIB
- aid
- AID
- aid worker
- aide
- aide-de-camp
- AIDS
- AIH
- ail
- ailing
- ailment
- aim
- aimless
- aimlessly
- ain't
- air
- air bag
- air cushion
- air freight
- air freshener
- air hostess
- air mattress
- air miles
- air pocket
- air raid
- air rifle
- air steward
- air stewardess
- air strike
- air terminal
- air travel
- airbase
- airbed
- airborne
- airbrake
- airbus
- air-conditioned
- air-conditioning
- aircraft
- aircraft carrier
- Airedale terrier
- airfield
- airforce
- airgun
- airily
- airing
- airing cupboard
- airlane
- airless
- airletter
- airlift
- airline
- airliner
- airlock
- airmail
- airman
- airplane
- airplay