Conceptual engineering is a relatively new branch of philosophy dedicated to the evaluation and revision of concepts, understood as tools for understanding and navigating a complex reality. The core idea is simple: instead of simply accepting the concepts we have and analysing their content, we should actively work to design better concepts – ones that can profoundly influence habits of thought and behavior, and thereby be instruments for social change. While the literature highlights numerous real-world examples, from debates on AI and emerging technologies to issues like gender and race, much of the discussion on conceptual engineering has so far remained within academic circles. At the same time, something like conceptual engineering has long been practiced in civil society, where campaigns and coalitions seek to change how people think about certain issues. Despite this overlap, little to no communication exists between the two. This workshop aims to bridge this gap by bringing together philosophers and actors from civil society in a shared dialogue. Philosophers working on conceptual engineering can gain valuable insights from practitioners: How are new concepts implemented in practice? What social forces drive conceptual change, and to what extent can these changes be intentionally directed? Conversely, actors within civil society and the non-profit sector can benefit from engaging with novel philosophical perspectives. While their work is most often understood in terms of “narrative change” or “reframing” of social issues, conceptual engineering can provide a complementary framework for understanding their existing practices and shaping future strategies for more impactful social change.