A generation gap or generational gap, is a difference of opinions between one generation and another regarding beliefs, politics, or values. In today's usage, "generation gap" often refers to a perceived gap between younger people and their parents and/or grandparents.
Early sociologists such as Karl Mannheim noted differences across generations in how the youth transition into adulthood. and studied the ways in which generations separate themselves from one another, in the home and in social situations and areas (such as churches, clubs, senior centers, and youth centers).
The sociological theory of a generation gap first came to light in the 1960s, when the younger generation (later known as Baby Boomers) seemed to go against everything their parents had previously believed in terms of music, values, governmental and political views. Sociologists now refer to "generation gap" as "institutional age segregation". Sociologists have divided the lifespan into three different levels: childhood, midlife and retirement. Usually, when any of these age groups is engaged in its primary activity, the individual members are physically isolated from people of other generations, with little interaction across age barriers except at the nuclear family level.
There are several ways to make distinctions between generations. For example, names are given to major groups (Baby Boomers, Gen X, etc.) and each generation sets its own trends and has its own cultural impact.
It can be distinguished by the differences in their language use. The generation gap has created a parallel gap in language that can be difficult to communicate across. This issue is one visible throughout society, creating complications within day to day communication at home, in the work place, and within schools. As new generations seek to define themselves as something apart from the old, they adopt new lingo and slang, allowing a generation to create a sense of division from the previous one. This is a visible gap between generations we see every day. "Man's most important symbol is his language and through this language he defines his reality."
Slang is an ever-changing set of colloquial words and phrases that speakers use to establish or reinforce social identity or cohesiveness within a group or with a trend in society at large. As each successive generation of society struggles to establish its own unique identity among its predecessors it can be determined that generational gaps provide a large influence over the continual change and adaptation of slang. As slang is often regarded as an ephemeral dialect, a constant supply of new words is required to meet the demands of the rapid change in characteristics. And while most slang terms maintain a fairly brief duration of popularity, slang provides a quick and readily available vernacular screen to establish and maintain generational gaps in a societal context.