- All dressed up with nowhere to go
- All fools day
- All found
- All hail
- All in all
- All is well
- Allerliefste
- Allocution
- Allspice
- Allude
- Allurment
- Alluvial
- Alluvium
- Ally
- Alma mater
- Almoner
- Almost
- Altercate
- Altercation
- Alternate
- Altimeter
- Altogether
- Alumni
- Alveolar
- Amalgam
- Amanuensis
- Analyze
- Ami
- Amidships
- Amiss
- Ammonia
- Amnesty
- Amok
- Among muslims
- Amusing
- An agony uncle
- An air of mystery
- An early bird
- An inter-planetary period
- An opening flower
- An upanishad
- Anatomically
- Ancestors
- Ancestral
- Ancestral home
- Anchor
- Anchorage
- Anchorite
- Anchovy
- And
- And another thing
- And how
- And so forth
- Android
- Anecdotal
- Anemic
- Anemone
- Anesthetize
- Anew
- Angel
- Angiosperms
- Angler
- Anglican
- Anopheles
- Anorak
- Anorexia
- Anosmia
- Another cup of tea
- Anoxia
- Answer
- Answering
- Antagonist
- Antagonistic
- Antares
- Anteater
- Antebellum
- Antecedence
- Antenna
- Anticipatory bail
- Anticoagulant
- Antidemocrat
- Antidote
- Antifreeze
- Antigen
- Antiperspirant
- Antiphon
- Antiseptic
- Antisocial
- Ants
- Ants in ones pants
- Antsy
- Aphid
- Aphrodisiac
- Apiology
- Apnoea
- Apocryphal
- Apodyopsis
- Apogee
- Apology
- Apophenia