- Aureate
- Aurora
- Auster
- Austere
- Auteur
- Authenticate
- Authentication
- Authorised
- Authoritarianism
- Authoritative
- Avionics
- Awake
- Awe
- Awe-inspiring
- Awestruck
- Awhile
- Awkwardly
- Awn
- Altaltissimo
- Ark
- Astron
- Ataxia, ataxia
- a bag of bones
- A bed roses
- A bird in a golden cage
- A bit
- A black sheep
- A black-leg
- A blank look
- A bull in a china shop
- A bun in the oven
- A capella
- A chorus of thanks
- A cold sweat
- A cubit
- A good number of
- A good or great while
- A good second
- A good sort
- A hard life
- A herb
- A herb conceived as being capable of bringing the dead to life
- A large number
- A late hour
- A long face
- A long gasp
- A long time
- A magnetic personality
- A man of substance
- A man of the people
- A man ofwords
- A medicinal grass
- A morsel
- A nervous wreck
- A one parent family
- A page in history
- A patent lie
- A raw deal
- A real man
- A sacred poetical work
- A sadder and wiser man
- A sealed book
- A short tripod
- A small drum
- A small fry
- A standing joke
- A suicide pact
- A tall story
- A touch of the tar brush
- A walking encyclopaedia
- A warrior who drives the chariot and fights at the same time
- A.d
- Aaai
- Abaca
- Aback
- Abet
- Abettoir
- Abhor
- Abide by
- Ability to understand
- Abiotic
- Abjuration
- Able
- Able-bodied
- Ably
- Absentee
- Absolute address
- Absolute control
- Abstain from
- Abstaining
- Abstention from buying
- Abstention from condemning
- Abstinence
- Abstinence from eating and drinking
- Abstinent
- Abstracted
- Accompany
- Accomplishing
- According
- According to