Swine are a group of even-toed ungulates belonging to the family Suidae, which includes pigs, hogs, and boars.

Here are some terms used to describe different swine:

Barrow: A male swine that has been castrated before reaching sexual maturity.
Boar: An adult male swine.
Gilt: A female swine that has not yet given birth.
Drove: A collective term for a group of swine.
Feeder pig: A young pig typically weighing between 40-70 pounds, sold by one farmer to another for further growth until reaching market weight.
Hog: A mature swine weighing above 150 pounds.
Lard types of pig: Specifically bred to have large fat deposits that can be easily separated during butchering, facilitating rendering and reducing loss of meat.
Market hog: A hog weighing between 220-260 pounds, typically sent to the market at the age of 5-7 months.
Meat types of pig (Bacon types): Bred to have a higher proportion of lean meat with moderate marbling of fat.
Pig: A young swine that is not yet sexually mature or a mature swine weighing under 150 pounds.
Piglet or baby pig: Refers to a young pig in its first 14-21 days of life, still dependent on nursing.
Shoat: A young hog that has been weaned and is ready for market, typically weighing between 150-260 pounds.
Sow: An adult female swine.
Stag: A male swine that has been castrated after reaching sexual maturity.
These terms help categorize and differentiate swine based on their age, sex, and purpose.