The area in the central part of an amphitheater, in which the gladiators fought and other shows were exhibited; -- so called because it was covered with sand.
- An enclosed area for the presentation of sports events and spectacles.
- A building housing such an area
- A place or scene where forces contend or events unfold: withdrew from the political arena; the world as an arena of moral conflict.
- The area in the center of an ancient Roman amphitheater where contests and other spectacles were held.