theater Definition

theatre
theater
noun

1. A building or area outside specially designed for the performance of plays and operas, etc.

Thesaurus: playhouse, amphitheatre, auditorium, hall, opera house.
2. A large room with seats rising in tiers, eg for lectures.
3. The writing and production of plays in general.

Form: the theatre (also)
4. The world and profession of actors and theatre companies.

Form: the theatre
(Brit)
5. A specially equipped room in a hospital where surgery is performed.
6. A scene of action or place where events take place.

Example: theatre of war
(N Amer)
7. A cinema.

Etymology: 14c: from Greek theatron, from theaesthai to see.