- A bad patch
- A bed of thorn
- A big name
- A bird in the hand is worth two in the bush
- A bit thick
- A capital offence
- A caste title
- A cheat
- A chip of the old block
- A confirmed bachelor
- A cross-breed of male horse and female deer
- A mad dash
- A mad scramble
- A man of senses
- A matter of course
- A medicinal herb
- A medicinal plant
- A momant
- A musical drum
- A pair
- A peg to hang on
- A pinch of
- A pipe-dream
- Aberrate
- Aberration
- Abettor
- Abhorence
- Abidance
- Abject
- Abjectness
- Abl
- Ablate
- Ablaze
- Ablepsy
- Ablutions
- Abm
- Abnormal
- Abnormality
- Absenteeism
- Absolutely
- Absoluteness
- Absolutism
- Absolved
- Absorb
- Absorbed in
- Absorption
- Abstainer
- Abstemious
- Acceptance
- Accepted
- Access time
- Accessories
- Accolade
- Accolades
- Accommodating
- Accomodation
- Accompanied
- Accompaniment
- Accredited
- Accrual
- Accruement
- Accumbent
- Accumulator
- Accuracy
- Accursed
- Accusable
- Accusant
- Accusative
- Accused of
- Accustom
- Accustomed walk
- Acquaintanceship
- Acquiesce
- Acquisitive
- Acquittal
- Acre
- Acrimonious
- Acrobatic
- Acrobatics
- Acropolis
- Across
- Act of grace
- Actuarial
- Actuary
- Actuate
- Acuate
- Acupuncture
- Ad hoc
- Ad infinitum
- Adamantine
- Adapt
- Adapter
- Admirable
- Admiral
- Admiration
- Admirer
- Admiringly
- Admit of
- Adolescent
- Adoption