- Attune
- Aureus
- Auricle
- Auspices
- Autarchy
- Authentically
- Authorative person
- Authorial
- Authorise
- Autoradiograph
- Autosomal chromosome
- Autotrophic
- Auxiliary bishop
- Availability
- Available resources
- Avarice
- Avenue
- Averse
- Aviation
- Aviatrix
- Aviculture
- As such
- Atomism
- Alienist
- Almirah
- Amen!
- Antiquarianism
- Arm
- Atdm
- A drop in the ocean
- A fair treat
- A feather in one's cap
- A fellow believer
- A few
- A fight to the finish
- A fighting chance
- A figure of squaresused in holy spells
- A fly on the wall
- A gem
- A good deal
- A good or great many
- A hen party
- A herb with the smell of camphor
- A historical
- A hollow laughter
- A la
- A labour of love
- A little only
- A planetary junction in which the moon stands in the focus of the sun
- A poison
- A regular life
- A rolling stone gathers no moss
- A second opinion
- A small cup
- A small play
- A smart move
- A sore thumb
- Abacus
- Abandoning
- Abase
- Abashing
- Abashment
- Abatement of sickness
- Abbreviate
- Abc
- Abcess
- Abdicate
- Abdication
- Abduction
- Abed
- Abend
- Abode
- Abolition
- Abominable
- Aborigines
- Abort
- Aborted
- About us
- Above oneself
- Above price
- Abracadabra
- Abracos
- Abrade
- Abrading
- Abrandant
- Abrasively
- Abrasiveness
- Abreast
- Abridged
- Abrupt
- Abruptness
- Abscond
- Absconded out
- Absconding
- Abseil
- Absence
- Absent
- Axilla
- Absurd
- Absurdism