bilesbiles means A surname.EtymologyUncertain or disputed. Commonly thought to derive from Old English bil (“bladed weapon”), a bill, billhook. Other theories suggest a connection to Old English bile (“beak of a bird”), or from (son of) William.nameA surname.nounA gymnastic maneuver consisting of a double half layout, with full twist and blind landing.“In gymnastics, if you do a double layout with half turn then you're doing a ‘Biles’”