The fourth and lowest Hindu caste. It literally means "slave." Historically, the members of this varna were servants to those of the higher-castes. They are the only caste that is not twice-born.

a member of the lowest or worker Hindu caste

the lowest of the four varnas: the servants and workers of low status

The worker caste according to the traditional Hindu system of social classification

'Labourer'. Skilled worker traditionally serving the other three castes – the Brãhmins, Kshatriyas and Vaishyas. Considered the lowest of the four castes in the ancient Indian social system.

The fourth- and lowest-ranked caste

Member of the fourth and lowest Hindu caste, that of menial laborers.

Shudra (IAST: ) is the fourth Varna in the traditional four-section division in historic Hindu society. Their assigned and expected role in post-Vedic India was that of laborers. The four Varnas are Brahmin, Kshatriya, Vaisya, and Shudra.