This volume represents the most complete compilation to date of vocabulary in the Erromangan (or Sye) language of southern Vanuatu, along with an English-Erromangan finderlist. The introduction provides relevant background to enable the reader to make maximum use of information contained within dictionary entries, as well as discussing relevant grammatical and sociolinguistic information. The dictionary also includes separate discussions of personal names and names of places in the Erromangan language. This volume is intended as a supplement to _An Erromangan (Sye) grammar_ (University of Hawai'i Press) by the same author, as well as _Ura: a disappearing language of Southern Vanuatu_ (Pacific Linguistics), which is a description of the most closely related language.