Feeder pig, a weaned gilt or barrow weighing between 18 kg (40 lb) and 37 kg (82 lb) at 6 to 8 weeks of age that is sold to be finished for slaughter.
Porker, market pig between 30 kg (66 lb) and about 54 kg (119 lb) dressed weight.
Baconer, a market pig between 65 kg (143 lb) and 80 kg (180 lb) dressed weight. The maximum weight can vary between processors.
Grower, a pig between weaning and sale or transfer to the breeding herd, sold for slaughter or killed for rations.
Finisher, a grower pig over 70 kg (150 lb) liveweight.
Butcher hog, a pig of approximately 100 kg (220 lb), ready for the market. In some market (Italy) the final weight of butcher pig is in the 180 kg (400 lb) range. This to have hind legs suitable to produce cured ham.
Backfatter, cull breeding pig sold for meat; usually refers specifically to a cull sow, but is sometimes used in reference to boars.
Herd, a group of pigs, or all the pigs on a farm or in a region.
Sounder, a small group of pigs (or wild boar) foraging in woodland
Trotters, the hooves of pigs (they have four hoofed toes, walking mainly on the larger central two).