skateboarder
Athlete who skateboards; because of the risk of injury from falling, the athlete usually wears several pieces of protective equipment.
coping 
Metal rail at the platform’s edge; skateboarding tricks include sliding along it and balancing on it with one hand or the board.
helmet 
Hard piece of equipment designed to protect the head.
elbow pad 
Piece of equipment with a hard outer shell that is used to protect the elbow.
knee pad 
Piece of equipment made of hard molded plastic that protects the knee.