Thoroughbred Horse
When used as a proper noun, refers to a specific breed of horse, best known as a race horse.[268] Occasionally used as a non-proper noun to mean purebred.
https://en.wikipedia.org/wiki/Glossary_of_equestrian_terms
When used as a proper noun, refers to a specific breed of horse, best known as a race horse.[268] Occasionally used as a non-proper noun to mean purebred.
https://en.wikipedia.org/wiki/Glossary_of_equestrian_terms