Japanese and Korean are typologically quite similar, so a linguistic phenomenon in one language often has a counterpart in the other. The papers in this volume are intended to further compare and/or contrast research in both languages. This volume reflects the fifth Japanese/Korean Linguistics Conference's unique division into four distinct panels: Conversation, Grammaticalization and Semantics, Syntax and Semantics, and Korean Phonology. The fifth Japanese/Korean Linguistics Conference was held at the University of California, Los Angeles.