The term 'Saint Tomb of' can be completed with the crossword solution 'SHRINE', which is a six-letter word. A SHRINE is a holy or sacred place dedicated to a specific deity, ancestor, hero, martyr, saint, or similar figure of awe and respect. Shrines often contain idols, relics, or other such objects associated with the figure being venerated. They are often used for worship and may be considered a focus of a cult image.