arena Meaning, Definition & Usage

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

WordNet

A*re"na noun
Etymology
L. arena, harena, sand, a sandy place.
Wordforms
plural E Arenas L Arenæ
Definitions
  1. (Rom. Antiq.) 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.
  2. Any place of public contest or exertion; any sphere of action; as, the arenaof debate; the arena of life.
  3. (Med.) "Sand" or "gravel" in the kidneys.

Webster 1913