Arena - Definition
arena
n 1: a particular environment or walk of life; "his social
sphere is limited"; "it was a closed area of employment";
"he's out of my orbit" [syn: sphere, domain, area,
orbit, field, arena]
2: the central area of an ancient Roman amphitheater where
contests and spectacles were held; especially an area that
was strewn with sand
3: a large structure for open-air sports or entertainments [syn:
stadium, bowl, arena, sports stadium]
4: a playing field where sports events take place [syn: arena,
scene of action]