The Temple of Jupiter Optimus Maximus, also known as the Temple of Jupiter Capitolinus, was the most important temple in Ancient Rome, located on the Capitoline Hill. It was surrounded by the Area Capitolina, a precinct where numerous shrines, altars, statues and victory trophies were displayed.

The vocabulary of ancient Roman religion was highly specialized. Its study affords important information about the religion, traditions and beliefs of the ancient Romans. This legacy is conspicuous in European cultural history in its influence on later juridical and religious vocabulary in Europe, particularly of the Christian Church. This glossary provides explanations of concepts as they were expressed in Latin pertaining to religious practices and beliefs, with links to articles on major topics such as priesthoods, forms of divination, and rituals.