cast / caste are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
cast: (noun) the actors in a play. (noun) the distinctive form in which a thing is made. (noun) bandage consisting of a firm covering (often made of plaster of Paris) that immobilizes broken bones while they heal. (noun) object formed by a mold. (noun) the act of throwing dice. (verb) deposit. (verb) select to play,sing, or dance a part in a play, movie, musical, opera, or ballet. (verb) assign the roles of (a movie or a play) to actors. (verb) form by pouring (e.g., wax or hot metal) into a cast or mold.
caste: (noun) social status or position conferred by a system based on class. (noun) (Hinduism) a hereditary social class among Hindus; stratified according to ritual purity. (noun) a social class separated from others by distinctions of hereditary rank or profession or wealth. (noun) in some social insects (such as ants) a physically distinct individual or group of individuals specialized to perform certain functions in the colony.
cast: k·AE·s·t
caste: k·AE·s·t
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)