Oaks, theOaks, the /əʊks/ 
a horse race for fillies (=young female horses) held every year at Epsom in the UK, one of the most important events in British flat racing (=racing on level ground, not jumping over fences)
a horse race for fillies (=young female horses) held every year at Epsom in the UK, one of the most important events in British flat racing (=racing on level ground, not jumping over fences)