The term "Sabbateans" refers to the followers of Sabbatai Zevi, a 17th-century Jewish preacher who claimed to be the messiah. However, there are a few synonyms that are used to refer to these followers. One of the most common synonyms is "Zeviites," named after the founder himself. Another synonym is "Sabians," which was used in the Ottoman Empire to refer to the followers of Sabbatai Zevi. Additionally, they are sometimes known as "Shabbataians" or "Shabbatean-Messianists." These synonyms are often used interchangeably and represent the various facets of the movement and its followers. Overall, the term Sabbateans or its synonyms refers to the followers of Sabbatai Zevi, who believed that he was the Messiah.