The place where something happens; the area in which certain actions take place.

1620s, "place of combat," from Latin harena "place of combat," originally "sand, sandy place," perhaps from Etruscan. The central stages of Roman amphitheaters were strew [..]

a large open space with seats all around, where you can watch games or sports

[UNIX] n. The area of memory attached to a process by `brk(2)' and `sbrk(2)' and used by `malloc(3)' as dynamic storage. So named from a semi-mythical `malloc corrupt arena' messag [..]

At war with yourself

(n) a particular environment or walk of life(n) the central area of an ancient Roman amphitheater where contests and spectacles were held; especially an area that was strewn with sand(n) a large struc [..]

A type of stage where the audience is seated on three sides (also referred to as Thrust).

A vast outdoor arena rigged with Panem’s high-tech TV cameras as well as traps and challenges to test the tributes fighting each other to the death in the Hunger Games. An arena may contain anything f [..]

<computer programming> The area of memory attached to a Unix process by the brk and sbrk system calls and used by malloc as dynamic storage. So named from a "malloc: corrupt arena" message emitted when some early versions detected an impossible value in the free block list. See overrun screw, aliasing bug, memory leak, memory smash, [..]

1. 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. <medicine> "Sand" or "gravel" in the kidneys. Origin: [..]

A play mode in which a player chooses from 3 pre-selected heroes and creates a deck, one card at a time, from a random draft.