Oxford Dictionary English thoroughbred noun noun BrE BrE//ˈθʌrəbred// ; NAmE NAmE//ˈθɜːroʊbred// Equine sports Add to my wordlistjump to other resultsan animal, especially a horse, of high quality, that has parents that are both of the same breed Wordfinderhorsebridle, gallop, harness, horse, paddock, rein, stable, stirrup, tack, thoroughbred See related entries: Equine sportsSee thoroughbred in the Oxford Advanced American DictionaryCheck pronunciation: thoroughbred oxfordlearnersdictionaries.com