|1.||[ noun ] (performing arts) a building where theatrical performances or motion-picture shows can be presented|
"the house was full"
|Related terms:||building cinema music_hall home_theater little_theater dinner_theater opera arena_theater odeum stage dressing_room orchestra greenroom theater_stage standing_room orchestra_pit circle box_office parquet_circle tiered_seats parquet dramaturgy|
|2.||[ noun ] (theater) the art of writing and producing plays|
|Synonyms:||theatre dramatic_art dramatics dramaturgy|
|Related terms:||communication stage dramatic_composition seat support enter appear chain act dramatic_irony co-star ticket_agent underact overact stooge closed-circuit_television amphitheater star downstage flies upstage|
|3.||[ noun ] (military) a region in which active military operations are in progress|
|Synonyms:||field theatre theater_of_operations theatre_of_operations field_of_operations|
"the army was in the field awaiting action" "he served in the Vietnam theater for three years"
|Related terms:||region theater_of_war combat_zone military|