An open-air structure with tiers of seats on sloping banks, used for sports events, concerts, and other performances.
Early 17th century: via latin from greek amphitheatron "place for viewing both sides", from amphi- "on both sides" + theatron "place of viewing".
- The ancient Roman amphitheater was used for gladiatorial contests.
- The city's new amphitheater was built for concerts and shows.
- The seating capacity of the amphitheater was over 10,000 people.
- The band performed at an outdoor amphitheater.
- The amphitheater was built with a stage in the center.