The aim of this paper is to offer insight into the concept of multilingualism, the dynamics relevant for understanding multilingualism, and those factors that shape the multilingual development of individuals and society. In addition to an initial definition of multilingualism as an individual and social phenomenon, the author presents different factors that influence the multilingual development of individuals, following a logic of concentric circles – such as individual, family, society, school institution – and different ages – early childhood, student phase, adulthood. The understanding of these dynamics is a crucial precondition for respect for multilingualism and the development of multicultural competencies. Today, society is a poten...