- an early bird
- an
- add up
- a matter of life and death
- academic
- actinic
- altitude
- anaesthesiologist
- addendum
- age of shams
- ambitious
- amen!
- addicted
- address book
- amiss
- abound
- ambiguous
- a lack-all
- ambush
- academy
- addled
- a capella
- ameliorate
- aberrant
- address
- aha
- amnesty
- adherent
- anchorage
- acm
- amoral
- adjoin
- amount
- abulia
- amplitude
- adjoining
- ample
- a king's ransom
- amputate
- adjudication
- analogy
- actionable claim
- amusement
- accession
- adjustment
- above par
- analysis
- admirable
- anarchic
- accumbent
- anarchist
- able-bodied
- ancestor
- ahead of one's time, ahead of its time
- ancient
- airline
- adroit
- acrostic
- adolescent
- a shot in the locker
- algal
- a disciple who lodges with his preceptor
- acclaimed
- adiabatic
- absorbed in
- ambiguousness
- adorn
- address bus
- abrasion
- admire for
- adornment
- abominable snowman
- affably
- analyse, analyze
- arch
- acoustics
- acclamation
- air-cooled
- advance
- almound tree
- agamogenesis
- accusingly
- advise
- acclimatization
- anchorite
- airavata
- advisory
- ambient
- all one
- adz
- advocate
- amranthus polystachys
- able
- air-cooling
- aegis
- allegro
- alkali
- affluenza
- accompaniment
- apologise