Illustration of thoroughbred
- Thoroughbred
thor·ough·bred
ˈthər-ə-ˌbred 
ˈthə-rə-
1
: bred from the best blood through a long line : purebred
thoroughbred dogs
2
a
Thoroughbred
: of, relating to, or being a Thoroughbred horse
b
: having characteristics resembling those of a Thoroughbred
3
: thoroughly trained or skilled
a thoroughbred soldier
1
: a purebred or pedigreed animal
2
Thoroughbred
: any of an English breed of light speedy horses kept chiefly for racing that originated from crosses between English mares of uncertain ancestry and Arabian stallions
3
: a thoroughly educated or skilled person
Synonyms of thoroughbred
Examples of thoroughbred in a Sentence
Adjective
a thoroughbred dog
Recent Examples on the Web
Kevin Modesti, Oc Register, 4 Jan. 2026
The Terraces, which has been open since May, proudly displays art commemorating the area’s Black heritage and the Preakness thoroughbred horse races that take place every year just a few blocks away.
—Andrea Riquier, USA Today, 13 Dec. 2025
Wendy Bowman, Robb Report, 18 Dec. 2025
Loading up the thoroughbred in the trailer from Davis to Judy's East Sacramento street.
—Madisen Keavy, CBS News, 21 Nov. 2025
See All Example Sentences for thoroughbred
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Adjective
Los Alamitos later announced its quarter-horse and thoroughbred races were canceled for the second straight night on Sunday.
—Kevin Modesti, Oc Register, 4 Jan. 2026
The Terraces, which has been open since May, proudly displays art commemorating the area’s Black heritage and the Preakness thoroughbred horse races that take place every year just a few blocks away.
—Andrea Riquier, USA Today, 13 Dec. 2025
Noun
Per The Wall Street Journal, he was originally introduced to the property by his horse trainer, who was looking at a small part of it for keeping thoroughbreds.
—Wendy Bowman, Robb Report, 18 Dec. 2025
Loading up the thoroughbred in the trailer from Davis to Judy's East Sacramento street.
—Madisen Keavy, CBS News, 21 Nov. 2025
See All Example Sentences for thoroughbred
Cite this Entry
“Thoroughbred.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thoroughbred. Accessed 8 Jan. 2026.
Copy CitationKids Definition
thoroughbred
1 of 2 adjective
thor·ough·bred
ˈthər-ə-ˌbred
ˈthə-rə-
1
: bred from the best stock through a long line : purebred
thoroughbred dogs
2
capitalized
: of, relating to, or being a Thoroughbred horse
thoroughbred
2 of 2 noun1
: a purebred or pedigreed animal
2
capitalized
: any of an English breed of light speedy horses kept chiefly for racing
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