The interactions and living together of generations aim to the sharing of public places and living spaces, on the scale of a family, a city, a social or cultural framework. But this does not prevent that there may be changes in the transmission of values and intergenerational traditions, with the introduction of new technologies, in the daily lives of individuals. Due to this mix of generations, urban/rural relations and the sharing of an appropriate space, private/public, gave rise to identity competition and a change in the language practices of individuals. Attias-Donfut (1995), Arrondel and Masson (1999), among others, admit that the mobilization of language resources, the know-how of actors in the prevention of social risks and the construction of collective responses, have a positive impact on social development.In this study, we gave priority to language sciences to see if we can address the issue of linguistic change at the theoretical and descriptive levels. Thus, we try to answer these questions: What is the impact of this new code or of this new popular French on the French language in general and on language exchanges in particular, between the generation of yesterday noted X (1960-1980) and today’s Y (1980-1997)? How do the speaker and interlocutor of these two generations respond to their language needs? What are the factors for the evolution of linguistic situations? How do they act? And what do they suggest? Finally, on what basis should we decide that the differences between linguistic situations are the product of changes and not substitutions/transformations? The objective of this work is to experiment with a theoretical modeling of the intergenerational discursive marks, relating to the characteristic facts of a generation, a territory, a linguistic change and language practices. Indeed, a language can exist only because its speakers preserve its existence through linguistic practices, represented and/or effective. Two different descriptive and analytical experiments were carried out to analyze and discuss the relationship between linguistic change and contemporary language variations, in particular linguistic and sociolinguistic awareness. A detailed study is proposed for this purpose. It includes: 1. On the Declared Language Practices (Representations) side, a semi-directive survey in the form of interviews based on two different pre-determined questionnaires with a separate audience in two different territories in Algeria, University of Batna 2, and in France, the University of Lorraine-Metz; 2. On the Effective Language Practices side, media representations, in the form of an analytical study of a variety and entertainment program, available on the TF1 television channel, Koh-Lanta «The Clash of Generations» 2017. We have identified the analytical grids of this program, located in time and space, as well as the intergenerational language practices as represented by the media.