There are two prominent semantic treatments of disjunction in formal semantics. Traditionally, disjunction is taken to express an operator that applies to any two elements A and B of a Boolean algebra and yields their join. In particular, if A and B are propositions, then disjunction delivers their union, A ∪ B. Another, more recent proposal is to treat disjunction as expressing an operator that can apply to any two objects of the same semantic type, and yields the set consisting of these two objects. In particular, if disjunction applies to two propositions A and B, it delivers a set of propositional alternatives, {A, B}. Each of the two approaches has certain merits that the other one lacks. Thus, it would be desirable to reconcile the two, combining their respective strengths. This paper shows that this is indeed possible, if we adopt a notion of meaning that does not just take truth-conditional, informative content into consideration, but also inquisitive content. * This paper has been presented, in chronological order, at Stanford, the University of Rochester, the University of Massachusetts Amherst, University College London, the University of Stuttgart, the University of Amsterdam, and the Third Questions in Discourse Workshop in Berlin. I received a lot of useful feedback on these occasions, for which I am very grateful. I am especially grateful to Maria Aloni, Ivano Ciardelli, Donka Farkas, and Jeroen Groenendijk; the paper has benefited enormously from our discussions and joint work over the last couple of years. Finally, financial support from the Netherlands Organisation for Scientific Research (NWO) is gratefully acknowledged.