Noun
a horse bred for racing
Source: WordNetSome people show evil as a great racehorse shows breeding. They have the dignity of a hard chancre. Ernest Hemingway
I'm a racehorse fanatic rather than a football fanatic. Steve McManaman
A jockey does not have to have been a racehorse. Arrigo Sacchi
To sentence a man of true genius, to the drudgery of a school is to put a racehorse on a treadmill. Samuel Taylor Coleridge
On your own donkey it is quicker than on someone else's racehorse. Yugoslav Proverb
The world would not make a racehorse of a donkey. Irish Proverb