A
abbrev
ABEND
accumulator
ACK
Acme
ad-hockery
address harvester
adger
admin
ADVENT
adware
AFAIK
AFJ
AFK
AI
AI-complete
airplane rule
Alderson loop
aliasing bug
Alice and Bob
All hardware
sucks, all software sucks.
all your base are
belong to us
alpha geek
alpha particles
alt
alt bit
Aluminum Book
ambimouseterous
Amiga
Amiga Persecution
Complex
amp off
amper
and there was much
rejoicing
Angband
angle brackets
angry fruit salad
annoybot
annoyware
ANSI standard
ANSI standard pizza
anti-idiotarianism
AOL!
app
Archimedes
arena
arg
ARMM
armor-plated
asbestos
asbestos cork award
asbestos longjohns
ASCII
ASCII art
ASCIIbetical order
astroturfing
atomic
attoparsec
Aunt Tillie
AUP
autobogotiphobia
autoconfiscate
automagically
avatar
awk