Holy Sepulcher vs American spelling

Holy Sepulcher and American spelling both are nouns.

Word	Noun	Adjective	Verb	Adverb
Holy Sepulcher	Yes	No	No	No
American spelling	Yes	No	No	No

Holy Sepulcher (noun)	American spelling (noun)
the sepulcher in which Christ's body lay between burial and resurrection	English orthography used in the United States (characterized by 'analyze', 'center', 'usable')