Answer/Explanation:
Definition of theater (Entry 1 of 2)
1a: a building or area for dramatic performances
b: a building or area for showing motion pictures
c: an outdoor structure for dramatic performances or spectacles in ancient Greece and Rome
2a: dramatic literature : PLAYS
b: dramatic representation as an art or profession : DRAMA
3: a place or sphere of enactment of usually significant events or action
the theater of public life
4a: a place rising by steps or gradations
a woody theater of stateliest view
— John Milton
b: a room often with rising tiers of seats for assemblies (as for lectures or surgical demonstrations)
5a: dramatic or theatrical quality or effectiveness
b: SPECTACLE sense 1a
c: entertainment in the form of a dramatic or diverting situation or series of events
their public feud made for good theater
6: THEATER OF OPERATIONS