sanctum sanctorum vs sanctum

sanctum sanctorum and sanctum both are nouns.

Word	Noun	Adjective	Verb	Adverb
sanctum sanctorum	Yes	No	No	No
sanctum	Yes	No	No	No

As nouns, sanctum sanctorum and sanctum are synonyms defined as:

sanctum sanctorum (noun)	sanctum (noun)
(Judaism) sanctuary comprised of the innermost chamber of the Tabernacle in the temple of Solomon where the Ark of the Covenant was kept	a place of inviolable privacy
a place of inviolable privacy	a sacred place of pilgrimage