Definition of "caste" in English

noun

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

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

3. (uncountable) The division of society into castes; the caste system.

4. (zoology) A class of polymorphous eusocial insects of a particular size and function within a colony.

   • In beehives, most bees belong to the worker caste.