| a body of people who settle far from home but maintain ties with their homeland; inhabitants remain nationals of their home state but are not literally under the home state's system of government | in some social insects (such as ants) a physically distinct individual or group of individuals specialized to perform certain functions in the colony |
| a group of organisms of the same type living or growing together | a social class separated from others by distinctions of hereditary rank or profession or wealth |
| (microbiology) a group of organisms grown from a single parent cell | (Hinduism) a hereditary social class among Hindus; stratified according to ritual purity |
| a geographical area politically controlled by a distant country | social status or position conferred by a system based on class |
| a place where a group of people with the same interest or occupation are concentrated | |