a - ability
ability - above-mentioned
abridge - abundance
abundant - accidentally
acclaim - accuracy
accurate - act
act - addicted
addiction - admire
admission - advantageous
adventure - affiliated
affirm - aged
agenda - aim
aimed - alcohol
alcoholic - all
all - ally
ally - alternate
alternately - American
American - analogous
analogy - anecdote
anesthetize - annotate
annotation - anthology
anthropology - anytime
anyway - append
appendicitis - appreciate
apprehend - arbitrary
arbitrate - aristocratic
arithmetic - arrangement
arrest - as
as - ascend
ashamed - aspiration
aspirations - associate
association - astrologist
astrology - at
at - attend
attend - augment
August - autumn
autumn - aware
awe-inspiring - azure