noun
definition
A place or building, consisting of a stage and seating, in which an audience gathers to watch plays, musical performances, public ceremonies, and so on.
definition
A region where a particular action takes place; a specific field of action, usually with reference to war.
example
His grandfather was in the Pacific theater during the war.
definition
A lecture theatre.
definition
An operating theatre or locale for human experimentation.
example
This man is about to die, get him into theater at once!
definition
A cinema.
example
We sat in the back row of the theater and threw popcorn at the screen.
definition
Drama or performance as a profession or art form.
example
I worked in theater for twenty-five years.
definition
Any place rising by steps like the seats of a theater.