- A posteriori
- A power in the land
- A pyramid scheme
- A queen mother
- A race against time
- A resaissance man
- A roof over ones head
- A safe best
- A safe job
- A shade
- A siva chant
- A skeleton in the cupboard
- Aboard
- Abode of ascetics
- Abodes
- Abolish
- Aboriginal hunters tribe
- Aborigine
- Abortion
- Abound in
- Abounds
- About
- Above par
- Absentation from mention
- Absolute majority
- Absolute ruler
- Absolution
- Absolve
- Absorber
- Abstain
- Abstention
- Abstract
- Accentuate
- Accessed
- Accidental
- Accidentality
- Acclamatory shouting
- Acclimatization
- Accommodation
- Accrete
- Accrued expenses
- Accusatory
- Accuser
- Accusing
- Accusingly
- Ace player
- Acerbic
- Acquisitiveness
- Acquit
- Acrid
- Acridity
- Acrobatic feat
- Actually
- Acumen
- Acute pain
- Ad-lib
- Adagio
- Adams apple
- Adapt to
- Adaptableness
- Adaptation
- Adc
- Adhere
- Adhering
- Adjacent
- Adjoin
- Adjudge
- Adjudication
- Adjudicator
- Adjunct
- Adman
- Administer
- Administrating
- Administration
- Administrative
- Administrative system
- Adorer
- Adorning
- Adroitly
- Adulteress
- Adumbrate
- Adumbration
- Affulment
- Aerial combat
- Aerial root
- Aeriform
- Aerobatic
- Aerodynamics
- Aerogramme
- Aeronaut
- Aeronautics
- Aeroplane
- Aesthetic
- Aesthetics
- Afar
- Affable
- Affecting
- Aflame
- African
- After hours