The following table lists the meanings of the "S" (Sex) column of info for a horse.
| c | Colt | A male horse or pony under 4 years of age that has not been gelded (castrated). |
| f | Filly | A female horse or pony under 4 years of age. |
| g | Gelding | A male horse or pony of any age that has been gelded (castrated). |
| h | Horse | A male horse that is 4 years or older that has not been gelded (castrated). |
| m | Mare | A female horse or pony that is 4 years or older. |
Here are some more gender terms used in horse racing.
| Stallion | A mature male horse capable of producing offspring.
In some countries a "stallion" is the same as "horse" meaning a male horse that is 4 years or older that has not been gelded (castrated). |
| Sire | An adult male horse is called a "stud" or "sire" when used in breeding. |
| Stud | An adult male horse is called a "stud" or "sire" when used in breeding. |
| Foal | A female or male horse or pony under 1 year of age. A female foal is known as a "Filly Foal", a male foal is known as a "Colt Foal". |
| Weanling | A foal that has been weaned. Foals are typically weaned at 5-6 months of age. |
| Yearling | A female or male horse that is between 1 and 2 years old. A female yearling is known as a "Yearling Filly", a male yearling that has not been gelded (castrated) is known as a "Yearling Colt". |
| Created: 2023-12-05 | Revised: ~ |