The term 'horse-rider' is often used to refer to an EQUESTRIAN, which is someone who rides horses as a sport or hobby. An EQUESTRIAN is someone who is skilled in horsemanship and is knowledgeable about the care and training of horses. They are also responsible for the safety of both the horse and rider while riding. Equestrians can compete in various disciplines such as show jumping, dressage, eventing, and more.