We aim to challenge assumptions made about the use of English as a “lingua franca” in scientific-academic contexts, identify the impact of such assumptions on trajectories of knowledge production and uptake, and legitimize the use of multiple languages for transnational scholarly exchange. We set out ten principles: Using English as a scientific-academic “lingua franca” does not always promote inclusion; A language positioned as a scientific-academic “lingua franca” can act as a language of domination; Positioning English as the “lingua franca” policy may discourage translations and exclude participation; Policies which position English as being the contemporary scientific-academic “lingua franca” may convey the idea that knowledge produced...