- Ask
- Asphalt
- Asphyxia
- Asphyxiator
- Aspirate
- Aspiration
- Aspire
- Asr
- Ass
- Assailant
- Assassin
- Assort
- Assuage
- Assumed
- Assumed name
- Assuming
- Assumption
- Assylum
- Astadyayi
- Asthma
- Astir
- Astral projection
- At all points
- At an alarming rate
- At what time?
- At any place
- At any rate
- At first hand
- At home
- At last
- Attend
- At this time of day
- At times
- At your service
- Atelier
- Atharvaveda
- Athena
- Atherosclerosis
- Athiest
- Athirst
- Athlete
- Athletic exercise
- Athletics
- Athma
- Atmolysis
- Atmospheric pressure
- Attendance
- Attendance register
- Attends
- Attention
- Attention deficit disorder
- Attentively
- Attenuate
- Attest
- Attic
- Attire abode
- Attirement
- Attitude
- Attracted
- Attracting
- Attributable
- Attribute
- Attributes
- Attrition
- Atypical
- Auntie
- Aura
- Aurora borealis
- Auscultation
- Auspicious function
- Auspicious sound
- Auspicious woman
- Austral
- Autarky
- Authentic
- Authenticity
- Author
- Authoritarian
- Auxiliary
- Avant-garde
- Avaricious person
- Avascular
- Avengeful
- Aversion
- Aversion therapy
- Avian influenza
- Ayacut
- Ayatollah
- Aye
- Ayurvedic treatment
- Ayyappa
- Azimuth
- Azotemia
- A bed of nails
- A bird
- Admass
- A bitter pill to swallow
- A brahmin who receives presents in honour of the dead
- A bunch of
- A cavity formed by folding togetherthe open palms