Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Language: Late Latin
Origin: Latin sanctus; SAINT

sanctum

 noun
     
Related topics: Religion
sanc‧tum [countable]
1

inner sanctum

TB a private place or room that only a few important people are allowed to enter - often used humorously:
Occasionally she would be allowed into the inner sanctum of his office.
2RRTB a holy place inside a temple
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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