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
It is banned in thoroughbred racing and competitors in other disciplines are divided, with some saying it creates unrealistic expectations and stifles advances in breeding.
From The Wall Street Journal ● Jun. 6, 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
In a chaotic last half hour, Carse charged down the Lord's slope like a thoroughbred that had unseated its rider.
From BBC ● Jul. 13, 2025
The only thing to do right now is gallop like a thoroughbred as fast as your bike will possibly go, and race for your life.
From "Booked" by Kwame Alexander
Both measures were opposed by Southern California tracks and the California Thoroughbred Trainers and the TOC.
From Los Angeles Times ● Feb. 26, 2026
“Journalism has been grand since the Kentucky Derby and trainer Michael McCarthy has greenlighted him to head to Pimlico for the 150th Preakness,” controlling owners Eclipse Thoroughbred Partners posted on X on Sunday.
From Los Angeles Times ● May 12, 2025
“Eclipse Thoroughbred Partners was the first outfit to send me horses and we’ve had a growing relationship ever since, a successful relationship,” McCarthy said.
From Los Angeles Times ● May 1, 2025
Wellman left Team Valor to start his own ownership group, Eclipse Thoroughbred Partners, in 2011.
From Los Angeles Times ● May 1, 2025
When my bat meets ball, the ball takes off like a missile toward right field, and I take off for first like a Thoroughbred exploding from the starting gate.
From "A High Five for Glenn Burke" by Phil Bildner
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.
