Many people across the globe are today experiencing an era characterised by increasingly dynamic population mobility. It is, consequently, a time where previously held assumptions about individual and group identities, and about the social and political semiotics that shape them, seem inadequate. Languages and cultures are at the heart of what has been termed this “superdiversity”. In contemporary superdiverse societies, the question of language poses a particularly difficult challenge, with new cultural realities giving rise to new questions. In in such circumstances, how can linguistic...