- the oval space in the center of a Roman amphitheater for gladiatorial combats or other performances.
- a central stage, ring, area, or the like, used for sports or other forms of entertainment, surrounded by seats for spectators: a boxing arena; a circus arena.
- a building housing an arena.
- a field of conflict, activity, or endeavor: the arena of politics.
- an enclosure or platform, usually surrounded by seats on all sides, in which sports events, contests, entertainments, etc, take place
- (as modifier)
- the central area of an ancient Roman amphitheatre, in which gladiatorial contests and other spectacles were held
- a sphere or scene of conflict or intense activity