What is the meaning of Caste?

Any of the hereditary social classes and subclasses of South Asian societies or similar found historically in other cultures.

A separate and fixed order or class of persons in society who chiefly associate with each other.

A class of polymorphous eusocial insects of a particular size and function within a colony.

singular present subjunctive of casten

caste (hereditary class)

class (social position)

species, race or kind

quality

progeny; group of people that share a common ancestor

feminine plural of casto

plural of casta

purely, spotlessly, virtuously

piously, religiously

vocative masculine singular of castus

Source: wiktionary.org