Theoretical and clinical progress in psychoanalysis continues to develop new concepts and to reconsider old ones, often in contradiction with each other. By confronting and opening these debates, we might find points of convergence but also divergences that cannot be reconciled; the ensuing tension among these should be sustained in a pluralistic dialogue. What Do Our Terms Mean? is the latest book in the suuccessful International Psychonalytical Association series, 'Controversies in Psychoanalysis'.