theater
US /ˈθiː.ə.t̬ɚ/
UK /ˈθiː.ə.t̬ɚ/

1.
a building or outdoor area in which plays, movies, or other performances are given
:
•
We went to the theater to see a new play.
•
The movie theater was packed on opening night.
2.
plays or other dramatic performances as a form of art or entertainment
:
•
She has a passion for live theater.
•
He studied theater arts in college.
3.
a room or area for surgical operations or medical procedures
:
•
The patient was taken to the operating theater.
•
The doctor prepared the theater for the minor procedure.