Caste - Definition

n 1: social status or position conferred by a system based on
class; "lose caste by doing work beneath one's station"
2: (Hinduism) a hereditary social class among Hindus; stratified
according to ritual purity
3: a social class separated from others by distinctions of
hereditary rank or profession or wealth
4: in some social insects (such as ants) a physically distinct
individual or group of individuals specialized to perform
certain functions in the colony