- Amigo
- Amine
- Amino acid
- Amity
- Amla
- Ammeter
- Ammo
- Ammonite stone
- Amnesia
- Amongst
- Amoral
- Amusement park
- Amusingly
- An apple of discord
- An assylum
- An item in phyrotechnic
- An object of ridicule
- An thesis
- An ugly duckling
- Ancestoral home
- Ancestral wealth
- Anchoring
- Ancients
- And so on
- Androgen
- Androgynous
- Angry word
- Anile
- Animal husbandry
- Animatedly
- Animation
- Animus
- Ankle joint
- Anklet
- Annalist
- Anneal
- Anonymously
- Aortis
- Anothers
- Answer the door
- Answerable
- Ant
- Ant-lion
- Antagonism
- Ante-mortem
- Antecedent
- Antedate
- Antediluvian
- Antelope
- Antemeridian
- Antenatal
- Anticlimax
- Anticlockwise
- Antics
- Antimony
- Antipathetic
- Antipathy
- Antipodes
- Antipole
- Antiquated
- Antitoxin
- Antler
- Antonym
- Ants hill
- Aphnology
- Aphonia
- Aphtha
- Apiarist
- Apiary
- Apiece
- Apl
- Apologize
- Apophthegm
- Apoplexy
- Apostolic
- Apothecary
- Applicant
- Application software
- Applied
- Applique
- Apply
- Appoint
- Appointment
- Appologised
- Appoointed
- Apportioning
- Apportionment
- Appose
- Appraisable
- Appraisee
- Appreciably
- Appreciate
- Aptly
- Aqua regia
- Aquaculture
- Arab
- Arabian jasmine
- Arbiter
- Arbitral
- Architrave