derby Pronunciation: /ˈdɜːrbi; ˈdɑːbi/Spanish translation of derbyn 1 [Sport] the Derby (in UK) = el Derby, el clásico de Epsom the Kentucky Derby = el Derby de Kentucky 2 (hat) (AmE) bombín (m) sombrero (m) de hongoderby in other Oxford dictionaries Definition of derby in the British & World English dictionary Definition of derby in the US English dictionary