The argument that communication constitutes organizations (also known as CCO) is increasingly accepted in communication studies. However, what tongue – idiom – is being used and how it relates to the constitution of the organization seems to be overlooked to a large degree. In this paper, we suggest that the Montreal School (TMS) tradition of organizational communication offers a fruitful analytical framework that allows to better take into account the way people practically deal with plurilingual situations as they go on with their daily activities and contribute to shaping their organizations. We identify six core features of TMS and show their analytical power in studying plurilingual interactions. TMS, we argue, is conceptually well equipped to reveal the ways in which multiple tongues are dealt with in everyday organizational settings and to uncover the constitutive nature of tongue-in-use
