I'll add a few more
PH = Punk Hazard
W7 = Water Seven
EL = Enies Lobby
DF = Devil Fruit
W3 = Weakling Trio (Usopp, Nami, Chopper)
ASL = Ace, Sabo, Luffy
G2/G3 = Gear Second/Second Gear and Gear Third/Third Gear
DCJ = Don Chinjao
BM = Big Mom
When talking about CoA and the other forms of haki...