In this paper we describe the creation, we are carrying out of a special- ized lexicon belonging to the maritime domain (including the technical and commer- cial/maritime transport domain) and the link of this lexicon to the generic one of the ItalWordNet lexical database. The main characteristics of the lexical semantic database and the specic features of the specialized language are described together with the coding performed according to the ItalWordNet semantic relations model and the ap- proach adopted to connect the terminological database to the generic one. Some of the problems encountered and a few expected advantages are also considered.