The term 'Division of Hindu Society' refers to the CASTE system, which is a five-letter word. The CASTE system is an ancient social hierarchy in India that divides people into four distinct classes based on their occupations and social status. This system has been in place for centuries and is still practiced today, although it has been outlawed by the Indian government. The four classes are Brahmins (priests and scholars), Kshatriyas (warriors and rulers), Vaishyas (merchants and traders), and Shudras (laborers and servants). Each class is further divided into sub-castes, which are based on family lineage and occupation. The CASTE system has been criticized for its rigid social structure and for perpetuating inequality and discrimination.