Should get you started
DH - dear husband or darn husband depending upon the day
DW - dear wife
DD - dear daughter
DS - dear son
GB - grand baby
SIL - sister in law
BIL - brother in law
MIL - mother in law
FIL - father in law
5er - 5th wheel camper
TT - travel trailer
toad - car pulled by a Class A or C (motor home)
TV - tow vehicle, like a pickup used to pull a trailer
TC - truck camper
CG - campground
WDH - weight distribution hitch, used to balance a heavy TT's tongue weight on a TV (puts weight back onto the steer tires)
GVW - how much a vehicle or RV actually weights ( determined by weighting at a truck scale)
GVWR - gross vehicle weight rating - how much the vehicle can weight as stated by the manufacturer
GCVWR - gross combined vehicle weight rating - How much a tow vehicle and its trailer can weight together. GCVWR - GVW = towing capacity
CC - cargo capacity, how much weight a tow vehicle can carry.
SRW - single rear wheel
DRW - dual real wheels aka a dually pickup
pin weight (PW) - how much weight a 5th wheel trailer puts on the bed of a pickup.
Dry weight or empty weight - how much the trailer or vehicle weighted when it left the manufacturer. Never to weight the same again
Loaded weight - how much it weights after you put all your stuff in it.