- anglophile
 - a peach
 - a commission agent
 - a dare devil
 - a sharp astute fellow
 - and overseer's position or job
 - acupuncturist
 - achromycin
 - arrogant behaviour
 - arrogance inspired by opulence
 - azotaemia
 - adenomyosarcoma
 - achivist
 - anabaena
 - anne
 - antirrhinum coulterianum
 - abney level
 - abbe condenser
 - abs
 - ambulanceman
 - ambulance worker
 - amniocentesis
 - arizona wild cotton
 - ashtray
 - aldehyde alcohol
 - acetyl chloride
 - acetyl
 - as it is
 - acetyl group
 - acetyl radical
 - acetin
 - acetylenic
 - acetone body
 - acetaldol
 - acetaldehyde
 - acetamide
 - acetate disk
 - acinonyx jubatus
 - acetylene
 - ascii
 - aster acuminatus
 - aspic
 - asbestosis
 - atmospheric phenomenon
 - a die
 - Alca torda
 - auklet
 - augustus welby northmore pugin
 - an arduous task
 - aepyornis