This paper is a contribution to documenting the traditional maritime terminology in the village of Preko (island of Ugljan). This terminology is nowadays seriously endangered due to the demise of the wood boat building practice and of the traditional navigation techniques, including the lateen sail. The corpus was collected in loco from native speakers, using the methods of semi-structured interview and direct elicitation, whereby the JAPRK questionnaire was applied. The introductory part of the paper presents an overview of the research in the field and of the maritime tradition of Preko. The corpus occupies the central part of the paper. In what follows, the traditional maritime terminology of Preko is compared with the ones of the neighbouring village of Kali (an important fishing port), of the village of Neviđane on the neighbouring island of Pašman, as well as with the maritime terminology of Betina, the most important centre of the traditional boat building in the area. The comparison shows a fair amount of differences between two neighbouring villages, whereby the influence of Betina in the levelling of the maritime terminology is heavier in Preko than in Kali, but also some precious relicts of the older maritime terminology, characteristic of Zadar archipelago.