The term 'SUNNI OR SHIA' is referring to two major sects of Islam. The crossword solution for this term is 'SECT', which is an organized religious group adhering to particular beliefs and practices. Sunni and Shia are the two largest sects of Islam, with Sunni Muslims making up the majority of the world's Muslim population. Sunni Muslims follow the teachings of the Quran and the traditions of the Prophet Muhammad, while Shia Muslims follow the teachings of the Quran and the traditions of the Prophet Muhammad as interpreted by their Imams.