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A community usually refers to a group of people who interact and share certain things as a group, but it can refer to various collections of living things sharing an environment, plant or animal. This article focuses on human communities, in which intent, belief, resources, preferences, needs, risks and a number of other conditions may be present and common, affecting the identity of the participants and their degree of adhesion.
The word community comes from the Latin communis, meaning "common, public, shared by all or many."[1] The Latin term "communitatus" from which the English word "community" comes, is comprised of three elements, "Com-" - a Latin prefix meaning with or together, "-Munis-" - ultimately Proto-Indo-European in origin, it has been suggested that it means "the changes or exchanges that link" (Both municipal and monetary take their meaning here), and "-tatus" a Latin suffix suggesting diminutive, small, intimate or local. German sociologist Ferdinand Tönnies presented a concise differentiation between the terms "community" (gemeinschaft) and "society" (gesellschaft). In his 1887 work, Gemeinschaft und Gesellschaft, Tönnies argued that "community" is perceived to be a tighter and more cohesive social entity within the context of the larger society, due to the presence of a "unity of will."[2] He added that family and kinship were the perfect expressions of community but that other shared characteristics, such as place or belief, could also result in gemeinschaft...
For detailed information about it, see this website:
http://en.wikipedia.org/wiki/Community