social structure

n. characteristics of societal relationships, manner in which a society is organized and functions

Social structure is a term frequently used in sociology and more specifically in social theory — yet rarely defined or clearly conceptualised (Jary and Jary 1991, Abercrombie et al 2000).The term social structure, used in a general sense, refers to entities or groups in definite relation to each other, to relatively enduring patterns of behaviour and relationship within social systems, or to social institutions and norms becoming embedded into social systems in such a way that they shape the behaviour of actors within those social systems.
See more at Wikipedia.org...

Noun
1. the people in a society considered as a system organized by a characteristic pattern of relationships; "the social organization of England and America is very different"; "sociologists have studied the changing structure of the family"
(synonym) social organization, social organisation, social system, structure
(hypernym) system, scheme
(hyponym) feudalism, feudal system
(member-holonym) society
(member-meronym) political system, form of government