Alternatives in Semantics is the first volume to focus on alternatives as a key theme. It offers a survey of the use of alternatives in semantics and pragmatics, and an overview of current approaches and applications of alternative-based semantics, from both theoretical and experimental perspectives. The chapters represent different theoretical frameworks, which differ in the way they conceive of the source of alternatives, the status of alternatives, or the precise way in which they enter semantic composition. The contributions focus on various empirical phenomena making reference to alternatives (negative polarity and free choice phenomena, implicatures, presupposition, focus and intervention effects), offering new insights and exploring connections between them. The chapters assembled in this volume demonstrate the vitality of alternative-based semantics and offer a clear perspective on the many challenging questions that arise from its increasing range of applications.