1. plural of derby: a type of hard, round hat with a narrow brim, typically worn by men
Usage: also called bowler hats
2. plural of derby: horse races, especially important annual races
Usage: often capitalized when referring to specific races
3. plural of derby: competitive contests or rivalries between teams from the same area
Usage: sports terminology; especially in soccer

Examples

• The gentlemen wore black derbies to the formal event.
• Several derbies were displayed in the vintage hat shop.
• The Kentucky Derby is one of the most famous derbies in horse racing.
• Three major derbies are scheduled for this racing season.
• The city derbies always draw huge crowds of passionate fans.
• Local derbies between rival teams create intense excitement.
• He collected antique derbies from the early 1900s.