- a
- a bomb
- a bone to pick
- a clean sheet
- a cock-and-bull story
- a day's grace
- a devil incarnate
- a few
- a free hand
- a good buy
- a good deal
- a great deal
- a great many
- a happy event
- a little
- a lot of
- a lump sum
- a matter of course
- a piece of cake
- a posteriori
- a practical joke
- a raw deal
- a regular guy
- a slip of the pen
- a while
- aardwolf
- aback
- abacus
- Abaddon
- abaft
- abandon
- abandoned
- abandonee
- abandonment
- abase
- abasement
- abash
- abashed
- abashment
- abate
- abatement
- abatis
- abattoir
- abb
- abbacy
- abbess
- abbey
- abbot
- abbreviate
- abbreviation
- ABC
- ABC-book
- abdicate
- abdication
- abdomen
- abdominal
- abdominal pains
- abdominous
- abducent
- abduct
- abduction
- abductor
- abeam
- abecedarian
- abecederian
- abed
- abele
- aberdevine
- aberrance
- aberrancy
- aberrant
- aberration
- abet
- abetment
- abetting
- abettor
- abeyance
- abhor
- abhorred
- abhorrence
- abhorrent
- abidance
- abide
- abiding
- ability
- ability to pay
- abiogenesis
- abject
- abjection
- abjure