- Alive
- Alkaline
- All
- 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
- Alms
- Aloft
- Alogical
- Along shore
- Alp
- Alphabet
- Alphabetical order
- Alphabets
- Already
- Altar piece
- Amaze
- Amazed
- Ambidexterity
- Ambidextor
- Ambiguousness
- Ambit
- Amble
- Ambrosial
- Ambuscade
- Ambush
- Amende honorable
- Amends
- Amenities
- Amount
- Amounting
- Ampalappuzha
- Amphipod
- Amphitheater
- Amphitheatre
- Amplitude
- Amputation
- Amranthus polystachys
- Amulet
- Amused
- Amusement arcade
- Anabolic steroid
- Anachronistic
- Anaemic
- Anagram
- Anal
- Analectic
- Analgesic
- Analogue
- Analyse
- Anandrous
- Anaphase
- Anecdotal
- Anemic
- Anemone
- Anesthetize
- Anew
- Angel
- Angiosperms
- Angler
- Anglican
- Annotation
- Announcing
- Annoy
- Annoying
- Annual
- Annul
- Annulment
- Annuls mirabilis
- Annunciate
- Anode
- Anoint
- Anointing sick
- Anole
- Anthelmintic
- Anther lobe
- Anthocephalus indicus
- Anthocyanins
- Anthropocene
- Anthropology
- Anthropomorphism
- Anti
- Anti virus software
- Anti-aircraft
- Anti-grammatical
- Anti-incumbent