Holy Sepulcher vs Holy Sepulchre

Holy Sepulcher and Holy Sepulchre both are nouns.

Word	Noun	Adjective	Verb	Adverb
Holy Sepulcher	Yes	No	No	No
Holy Sepulchre	Yes	No	No	No

As nouns, Holy Sepulcher and Holy Sepulchre are synonyms defined as:

Holy Sepulcher and Holy Sepulchre: the sepulcher in which Christ's body lay between burial and resurrection

Other synonyms of Holy Sepulcher include Church of the Holy Sepulchre.

Holy Sepulcher (noun)	Holy Sepulchre (noun)
the sepulcher in which Christ's body lay between burial and resurrection	the sepulcher in which Christ's body lay between burial and resurrection