THESAURUS
Colosseum
agora, amphitheater, arena, athletic field, auditorium, background, bear garden, bowl, boxing ring, bull ring, campus, canvas, circus, cockpit, coliseum, course, field, floor, forum, ground, gym, gymnasium, hall, hippodrome, lists, locale, marketplace, mat, milieu, open forum, palaestra, parade ground, pit, place, platform, precinct, prize ring, public square, purlieu, range, ring, scene, scene of action, scenery, setting, site, sphere, squared circle, stadium, stage, stage set, stage setting, terrain, theater, tilting ground, tiltyard, walk, wrestling ring
ROGET THESAURUS
Colosseum
Arena
N
arena, field, platform, scene of action, theater, walk, course, hustings, stare, boards, amphitheater, Coliseum,
Colosseum, Flavian amphitheater, hippodrome, circus, race course, corso, turf, cockpit, bear garden, playground, gymnasium, palestra, ring, lists, tiltyard, tilting ground, Campus Martins, Champ de Allars, campus, boxing ring, canvas, theater of war, seat of war, battle-field, battle-ground, field of battle, field of slaughter, Aceldama, camp, the enemy's camp, trusting place.