• a building or outdoor area in which plays are performed and other dramatic performances are given

Synonyms: playhouse, auditorium, amphitheatre, hippodrome, coliseum

• a room or hall for lectures with seats in tiers

Synonyms: hall, room, auditorium

• a region or area of the world in which a war is being fought; a theatre of war

Synonyms: scene, arena, field/sphere/place of action