theater vs military

theater and military both are nouns.

Word	Noun	Adjective	Verb	Adverb
theater	Yes	No	No	No
military	Yes	Yes	No	No

theater (noun)	military (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

theater (adjective)	military (adjective)
	associated with or performed by members of the armed services as contrasted with civilians
	characteristic of or associated with soldiers or the military
	of or relating to the study of the principles of warfare