theatre vs military machine

theatre and military machine both are nouns.

Word	Noun	Adjective	Verb	Adverb
theatre	Yes	No	No	No
military machine	Yes	No	No	No

theatre (noun)	military machine (noun)
a building where theatrical performances or motion-picture shows can be presented	the military forces of a nation
the art of writing and producing plays
a region in which active military operations are in progress