Volleyball is a team sport in which two teams of six players are separated by a net.
Each team tries to score points by grounding a ball on the other team's court under organized rules.
It has been a part of the official program of the Summer Olympic Games since 1964.
But simply, play proceeds as follows: a player on one of the teams begins a 'rally' by serving the ball (tossing or releasing it and then hitting it with a hand or arm), from behind the back boundary line of the court, over the net, and into the receiving team's court.