Civil society is one of the most widely used—and widely maligned—concepts in development studies. In this paper, we argue that much confusion regarding civil society stems from the omnibus nature of its conceptualization. We consider civil society to be an omnibus concept because it has been imbued with several distinct meanings—a normative meaning (civil society as civilized), a functional meaning (civil society as democratizing), and a structural meaning (civil society as a third sector). Using the example of humanitarian NGOs, we demonstrate how the omnibus nature of civil society resists systematization and requires scholars to make problematic assumptions when designing empirical research. As a solution, we propose replacing “civil soc...