The phrase Sothic year refers to the time it takes for the star Sirius to complete a full cycle and return to its exact position in the night sky. This astronomical event was significant to the ancient Egyptians, who used it to mark their calendar year. Synonymous terms for the Sothic year include the Canicular year, Sirius year, or the Great Year. These names all signify the same celestial cycle and its link to the Egyptian calendar. Understanding the concept of the Sothic year allows us to appreciate the sophisticated astronomical knowledge and cultural significance of ancient civilizations.