of pure or unmixed breed, stock, or lineage, as a horse or other animal; bred from the purest and best blood.
(sometimes initial capital letter) of or relating to the Thoroughbred breed of horses.
(of a person) having good breeding or education.
(initial capital letter) one of a breed of horses, to which all racehorses belong, originally developed in England by crossing Arabian stallions with European mares.
a thoroughbred animal.
a well-bred or well-educated person.
a pedigree animal; purebred
a person regarded as being of good breeding
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The Sixth Circuit in December 2025 upheld the constitutionality of the Horseracing Integrity and Safety Authority, a nonprofit that regulates thoroughbred racing.
From The Wall Street Journal ● Jul. 10, 2026
Over the past two years, Johnson has become a minority owner of multiple horses, including Sandman, a $1.2 million, dappled gray thoroughbred who competed in last year’s Derby.
From The Wall Street Journal ● May 1, 2026
“Bringing together two prestigious racing brands, the Kentucky Derby and Preakness Stakes, is a significant step toward the successful longevity and growth of the American Triple Crown of thoroughbred racing,” Stronach said.
From Los Angeles Times ● Apr. 21, 2026
Dale Romans, a thoroughbred racehorse trainer, has also made waves in the race since entering the primary in November, though no polling has been conducted that includes Romans.
From Salon ● Dec. 19, 2025
He patted the boat as if it was a thoroughbred horse.
From "The Thief Lord" by Cornelia Funke
“Yeah, it’s pretty hard to believe that a horse like him hasn’t won a race in a year,” said Aron Wellman, managing director of Eclipse Thoroughbred Partners, which co-owns the 4-year-old son of Curlin.
From Los Angeles Times ● Jul. 17, 2026
He no longer is ranked among the top 10 older horses in the National Thoroughbred Racing Assn. weekly poll.
From Los Angeles Times ● Jul. 17, 2026
But neither Santa Anita nor the Thoroughbred Owners of California requested an agenda item by the cutoff 12 days ago.
From Los Angeles Times ● Jan. 15, 2026
He was a former president and board member of the California Thoroughbred Breeders Assn. and served on the board of the Thoroughbred Owners of California and the National Jockey Club.
From Los Angeles Times ● Jul. 8, 2025
With the relegalization of wagering, no sport was growing faster than Thoroughbred racing.
From "Seabiscuit: An American Legend" by Laura Hillenbrand
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
