volleyball -
The inflated ball used in such a game.
Wikipedia
Volleyball is an Olympic 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. This article focuses on competitive indoor volleyball; numerous other variations of volleyball have developed, most notably the Olympic spin-off sport beach volleyball. The complete rules.
OmegaWiki Dictionary
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volleyball A sport in which two teams separated by a high net use their hands and arms to hit a ball back and forth over the net.