Holy of holies Meaning, Definition & Usage

  1. noun (figurative) something regarded as sacred or inviolable
    • every politician fears to touch that holy of holies, the Social Security System
  2. noun (Judaism) sanctuary comprised of the innermost chamber of the Tabernacle in the temple of Solomon where the Ark of the Covenant was kept
    sanctum sanctorum.

WordNet


Definitions
  1. (Script.), the innermost apartment of the Jewish tabernacle or temple, where the ark was kept, and where no person entered, except the high priest once a year.

Webster 1913