Hmm, let's see, ones that I can remember:
CQ - Conquest
pros/prosp - Prosperous
tech - Equipment(for ship) (could also mean Technatoria)
moli - Molikar (Mizar)
CC - Commerce Central (Gemini)
gaz - Gazica (Draconis)
hive - Mantis Hive (Draconis)
drac - Draconis
gem - Gemini
ant - Antares
harvs - Mantis Harvesters
inters - Mantis Interceptors
jug - Mantis juggernaut
mish - Mission
ab - Afterburner
speed act - Speed Actuator
rep - Repair
rep droid - Repair Droid
grind - Hunt for Cryonite/Blueprints/Achievements
gravi - Graviton
pod - Escape Pod
podded - Shot down (Whether by NPC or Player)
Then there's the normal internet acronyms:
Brb - Be right back
omw - On my way
gtg - Got to go
PvP - Player vs Player
Hope this helps! :mrorange: