1. Caste, any of the ranked, hereditary, endogamous social groups, often linked with occupation, that together constitute traditional societies in South Asia, particularly among Hindus in India

2. Beyond the Agnatic family, the larger social group was the clan (naf, toxum, or gohr) which comprised several dozen families whose heads shared a common ancestor and within which endogamous marriage was the rule

3. Caste systems are any ranked, hereditary, endogamous occupational groups that constitute traditional societies in certain regions of the world, particularly among Hindus in India.There, Caste is rooted in antiquity and specifies the rules and restrictions governing social intercourse and activity for each group based on their occupation and social status.