Hand: Unit of measurement to determine a horse's height. Measured from the ground to the top of the withers. 1 hand = 4 inches 14 hands = 56 inches 14.1 hands = 57 inches 14.2 hands = 58 inches 14.3 hands = 59 inches 15 hands = 60 inches There is NO 14.4, 14.5 etc.
Stallion: Mature, intact male horse/pony
Mare: Mature female horse/pony
Gelding: Castrated male horse/pony
Foal: Baby horse/pony
Filly: Juvenile female horse/pony
Colt: Juvenile male horse/pony
Weanling: Weaning age foal
Yearling: Refers to a horse/pony that is a year in age.
A.I. : Artificial Insemination.
Feather: The hair on the lower leg, from the knee down. Must cover the hoof all the way around. NOT "Feathers."