Learn how to say Sanctum correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word sanctum:
noun (plural sanctums)
1a sacred place, especially a shrine within a temple or church:
an icon installed within the sanctum of the temple
2a private place from which most people are excluded:
he ushered her into his sanctum and gave her something to drink
late 16th century: from Latin, neuter of sanctus ‘holy’, from sancire ‘consecrate’