- Agoraphobic
- Avoirdupois
- Amaranthus
- Antiquary
- Auctor
- A disciple who lodges with his preceptor
- A divine ministrel
- A dogs life
- A dry
- A false alarm
- A fiche
- A fish
- A floating voter
- A form of verse in which each line contains eight letters
- A golden parachute
- A good innings
- A good thing
- A grain of paddy
- A hollow laugh
- A host in himself
- A jam session
- A kings ransom
- A lack all
- A laughing stock
- A lazy susan
- A little water
- A plant with sweet-scented roots
- A plum job
- A pretty kettle of fish
- A pretty penny
- A quixotic project
- A variety of sida
- A safe pair of hands
- A sea of
- A shot in the arm
- A shot in the locker
- A signal achievement
- A sorry sight
- Abaddon
- Abandoned
- Abandoned woman
- Abandonment
- Abased
- Abashed
- Abba
- Abbreviation
- Abbreviator
- Aberrant
- Abnormally
- Abode assylum
- Abolishment
- Abolitionism
- Abolitionist
- Abominable snowman
- Abomination
- Aboriginal
- Abreaction
- Abortive
- Abounding in waves
- About-face
- About-turn
- Above
- Above ones head
- Above ones reach
- Absently
- Absolute
- Aqiqah
- Absorb in
- Absorbed
- Absorbent
- Absorbing
- Abstract art
- Abstractedness
- Accent
- Abstruse
- Absurbed notion
- Absurdist
- Abulia
- Abundance
- Abusing
- Abusive word
- Abusrdity
- Abut
- Abysm
- Academic
- Accede to
- Accomplice
- Accompliser
- Accomplishment
- Accordance
- Accordion
- Accost
- Achaean
- Achieve
- Achieving
- Acicular
- Acid
- Acidic
- Acidulate
- Acquaint