a race for three-year-old horses that is run annually at Epsom Downs, near London, England

first run in 1780.

any of certain other important annual horse races, usually for three-year-old horses, esp. the Kentucky Derby.

( lowercase ) a race or contest, usually one open to all who wish to enter and offering a prize for the winner.

( lowercase ) any endeavor or venture regarded as a competition

to win the gubernatorial derby.

( lowercase ) Also called bowler. a stiff felt hat with rounded crown and narrow brim, worn chiefly by men.