sanctum sanctorum is a noun meaning "a place of inviolable privacy". It carries 2 recorded senses.
(Judaism) sanctuary comprised of the innermost chamber of the Tabernacle in the temple of Solomon where the Ark of the Covenant was kept
Judaism
Definitions, synonyms and semantic relations for sanctum sanctorum come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.