The rules by which a group has agreed, implicitly or explicitly, to follow.

Culture is a set of values, norms, symbols, language, and way of life shared by a group of people. Culture is passed on from generation to generation. Group norms—the rules of daily living that members of the group adhere to—represent one aspect of culture. Homogeneous cultures, where all the members share language, lifestyle, and racial make-up, have a clear, well-defined set of norms that the group follows. Members of heterogeneous cultures represent a number of subcultures and do not necessarily have one language, lifestyle, and race in common. Thus, such cultures have fewer rules that all members voluntarily live by and tolerate a wider range of lifestyles, languages, and values. This loosening of norms is necessary within the larger culture to avoid conflict between members of the subcultures.

Groups norms are...