In biological terms, a community is a group of interacting organisms sharing an environment. In human communities, 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 cohesiveness. In sociology, the concept of community has caused infinite debate, and sociologists are yet to reach agreement on a definition of the term. In deed, one can find 94 discrete definitions of the term even as early as mid-1950s. Traditionally a "community" has been defined as a group of interacting people living in a common location. The word is thus often used to mean a group that is organised around common values within a shared geographical location. However, the definition has evolved and been enlarged to mean individuals who share characteristics, regardless of their location or type of interaction. In this sense, "community" can mean a community of interest or an ethnic group. Finally, wider meanings of the word can refer to the national community or global community. What these various meanings have in common is that they refer to the strength of the ties between the group, of whatever nature—cultural, ethnic, or moral—they may be.
Source: Wikipedia
