ROGET THESAURUS
field of battle
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.