Definition of Theater

Noun: theater thee-u-tur
Usage: US (elsewhere: theatre)

(dramaturgy) a building where theatrical performances or motion-picture shows can be presented
"the theater was full";
- theatre, house
The art of writing and producing plays
- dramaturgy, dramatic art, dramatics, theatre
(military) a region in which active military operations are in progress
"he served in the Vietnam theater for three years"; "the army was in the theater of operations awaiting action";
- field, field of operations, theater of operations [US], theatre, theatre of operations