Can philosophers help clarify social and political debate by applying their analytic methods to areas of dispute? Dr Les Burwood certainly thinks they can and has written this essay, On What Sexism Is and What It Is Not as an attempt to distinguish the different uses of the term “sexism” and their legitimacy. For this Open Debate we invited objections to Dr Burwood’s thought-provoking and controversial arguments, selected the best and passed them on to Dr Burwood, who offered his responses. The result is a lively, at times heated exchange of views.