The entire land, sea, and air area that may become or is directly involved in war operations.

synonym: theatre of war.

Roget 728: arena, field, platform; scene of action, theater; walk, course; hustings; stare, boards etc. (playhouse) 599; amphitheater; Coliseum, Colosseum; Flavian amphitheater, hippodrome, circus, race course, corso [Sp.], turf, cockpit, bear garden, playground, gymnasium, palestra, ring, lists; tiltyard^†, tilting ground; Campus Martins, Champ de Allars^†; campus [U.S.].    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 etc. (place of meeting) 74.    ... show more