The papers collected in this volume examine selected aspects of the interaction of phonology with phonetics, morphosyntax and the lexicon in a variety of languages including Korean, Spanish, Brazilian Portuguese, British English, Polish, Russian, Ukrainian, Dutch and Hawaiian. In order to approach the role and ways of expressing extraphonological information in phonology, the international contributors adopt different methods of analysis (data gathering, experiments, theoretical discussions), couched in various theoretical frameworks (such as Optimality Theory and Government Phonology), which reveal both the multifarious faces and interfaces of modern phonological research.