This paper develops an argument that discourse considerations are crucial in the semantics of questions by looking at the case of English “or what” questions. We argue that “what” in these questions is a discourse pronoun anaphoric with the ‘Question Under Discussion’, and show that this account explains the range of variation in how “or what” questions are interpreted in context, compared to other question types. This accounts for the fact that OWQs can be used as plain information seeking questions, as rhetorica…