Abstract:In this paper we present the computational lexical database Wordnet that has become the de facto standard for semantic networks. The first network of this type and, at the same time, the most developed one that was produced at the University of Princeton in the Laboratory for cognitive sciences, has served as a basis for the development of wordnets for many other languages. Wordnets that were developed in the scope of European research projects EuroWordNet and BalkaNet are aligned with the Princeton wordnet, which enables their successful use in many multi-lingual applications. The development of the Serbian wordnet was initiated during the BalkaNet project, and, after the end of that project, the work on its further development continued through the volunteer and cooperative work of many collaborators whose work is presented in this paper.