| in some social insects (such as ants) a physically distinct individual or group of individuals specialized to perform certain functions in the colony | 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 |
| a social class separated from others by distinctions of hereditary rank or profession or wealth | a group of organisms of the same type living or growing together |
| (Hinduism) a hereditary social class among Hindus; stratified according to ritual purity | (microbiology) a group of organisms grown from a single parent cell |
| social status or position conferred by a system based on class | a geographical area politically controlled by a distant country |
| | a place where a group of people with the same interest or occupation are concentrated |