American spelling vs theater

American spelling and theater both are nouns.

Word	Noun	Adjective	Verb	Adverb
American spelling	Yes	No	No	No
theater	Yes	No	No	No

American spelling (noun)	theater (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')	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