The study of compounds is currently at the center of attention in many areas of both theoretical and applied linguistics. This volume brings together contributions by experts involved in a wide range of such areas, based on a large number of diverse languages – spoken and signed. The fact that compound constructions are at the interface of the various components of language – morphology, syntax, phonology, and semantics – makes them ideal testing grounds for models of grammatical architecture, as seen in a number of these chapters.