dinner theater vs theater

dinner theater and theater both are nouns.

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

As nouns, theater is a hypernym of dinner theater; that is, theater is a word with a broader meaning than dinner theater:

dinner theater: a theater at which dinner is included in the price of admission
theater: a building where theatrical performances or motion-picture shows can be presented

Other hypernyms of dinner theater include house, theatre.

dinner theater (noun)	theater (noun)
a theater at which dinner is included in the price of admission	a building where theatrical performances or motion-picture shows can be presented
	the art of writing and producing plays
	a region in which active military operations are in progress