- Derby⇄Derby, noun, pl.-bies.
1. a famous horse race in England founded by the Earl of Derby in 1780 and run every year at Epsom Downs, near London.
2. a horse race of similar importance.
Ex. the Kentucky Derby.
3. a variety of porcelai - derby⇄derby, noun, pl.-bies.
1. an important race or competition.
Ex. a soapbox derby.
2. a stiff hat with a rounded crown and narrow brim; a bowler.