This paper seeks to identify the role of play in the design and function of Socratic dialogue as practiced in community of philosophical inquiry (CPI) in classrooms. It reviews the ideas of some major play theorists from various fields of study and practice-philosophy, cultural anthropology, evolutionary psychology, cognitive psychology, psychoanalysis, and education-and identifies the epistemological, ontological, and axiological judgments they share in their analyses of the phenomenon of play. It identifies five psychodynamic dimensions in which the Socratic play of following the argument where it leads can be identified: the play space, the time of play, the rules of the game, the stakes in play, and play and power. Finally, ...