I have no idea what these are, but if others do and let me know, I'll add them to the final list, yes.
Some Tray Abilities:
TT# - Tactical Team #
BP# - Boarding Party #
GW# - Gravity Well #
THY# - Torpedo High Yield #
CRF# - Cannon Rapid Fire #
EP2Aux - Emergency Power to Aux
Aux2SIF - Aux Power to Structural Integrity Field
APB - Attack Pattern Beta (this is why Aux is normally spelled out)
HE# - Hazard Emitters #
PH# - Polarize Hull #
ET# - Engineering Team #
ST# - Science Team #
And if you're up for it, grouping combat and non-combat acronyms would be really handy as the list continues to grow. Don't forget to add it all to STOwiki!
I see "shotgun" for 'pulsewave assault gun/rifle' a lot, which removes confusion with the PW initials.
So named because of its large knockback & need for close range.
CSE/CSN, ISE/ISN, KASE/KASN - Initials for Elite or Normal Space Special Task Force missions.
Kang - Referring to the ship protected in Cure Space mission & thus a nickname for that mission.
Nanites - repairing spheres & probes in Infected Space mission & thus a nickname for that mission.
Kitty - short for Khitomer Accord, usually Space, nickname for STF missions.
[The] Optional: The timed bonus reward in a Special Task Force mission.
PUG/RUG - used disparagingly by fleet members to Per-User Queue / Random User Group matches rather than using a private action. Usage: "I got the optional last night PUGging Cure!" or "Failed ISN again, stupid RUGs didn't know what they were doing"
[On/in] Tribble - The main test server for the game
Powers - Abilities from rank or kit that are used from the "powers tray" on the interface.
gg = good game
gj = good job
10% = get the nanite generators to 10%, then blow them all up at the same time (or as close as possible) then burn down the transformer before the probes/spheres can heal it, this is for Infected Space.
Someone also hinted at this, but for the STF names, its usually (STF)(location)(difficulty), so ISE is Infected Space Elite, CGN is Cure Ground Normal.
For the abilities, like "TT", "ET", "EpTS", etc... the thing that helps me, if I don't have the particular one memorized, is to know that is is more than likely a direct acronym, so TT for Tactical Team or EPTS for Emergency Power to Shields. Some are a little different, like Aux2SIF, which is "Auxiliary to Structural Integrity Field"