The crossword solution for the term 'SUNNIS OR SHIITES, E.G.' is 'SECT, ' which is a four-letter word. The term 'SECT' is used to refer to a religious group that has broken away from an established religion. In this case, Sunnis and Shiites are two sects of Islam, the world's second largest religion. Sunnis and Shiites have different interpretations of Islamic teachings and practices, and their differences have caused tension between them for centuries.