stadium
//ˈsteɪdiəm//
Noun
stadiumSingular
stadiums or stadiaPlural
1
A large, usually open structure with tiers of seats for spectators at sports events, concerts, or other large gatherings.
The football stadium can hold 50,000 spectators.
2
An ancient Greek or Roman course for foot races and chariot races, typically U-shaped with tiers of seats along the sides.
The ancient stadium was used for chariot races and athletic competitions.