|Foal||In this context, a horse is considered a foal from the day its born until January 1 of the next calendar year, regardless of when in the year the foal was born.|
|Yearling||A one year old horse|
|Juvenile||A two year old horse|
|Filly||A female horse that is younger than 5 years.|
|Colt||A male horse that is younger than 5 years and not gelded|
|Mare||A female horse that is 5 years or older|
|Stallion||A non-gelded male horse|
|Horse||A.) A member of the subspecies Equus ferus caballus.
B.) In a stricter sense within the thoroughbred industry, only a non-gelded male horse that is at least 5 years old is referred to as a horse.
|Gelding||A male horse that has been gelded (castrated)|
|Dam||The mother of a horse|
|Sire||The father of a horse|
|Broodmare||A female horse used for breeding|
|Stud||Male horse used for breeding|
|Broodmare Sire||A sire whose female offspring has become producers of racehorses|
Bet the horses