sanctum /sangkˈtəm/

1. (esp in the phrase inner sanctum) a sacred place
2. A (very) private room

sanctum sanctorum noun

1. The holy of holies, the inner chamber of the Jewish tabernacle
2. Any specially reserved retreat or room (informal)

• tributarinesses
• tributary
• tribute
• tribute band
• tribute bands
• tribute money
• tributer
• tributers
• tributes
• tributyltin
• tricameral
• tricar
• tricarboxylic
• tricarboxylic acid cycle
• tricarpellary
• tricars
• trice
• triced
• tricentenaries
• tricentenary
• tricephalous
• triceps
• tricepses
• triceratops
• triceratopses