This article presents the work in progress on the collaborative project of several European countries to develop National Language Technology Platform (NLTP). The project aims at combining the most advanced Language Technology tools and solutions in a new, state-of-the-art, Artificial Intelligence driven, National Language Technology Platform for five EU/EEA official and lower-resourced languages.

In this paper a semi-automatic procedure for the expansion of the Croatian Wordnet (CroWN) is presented. An English-Croatian dictionary was used in order to translate monosemous PWN 3.0 English variants. The precision values of the automatic process is low (about 30%), but the results proved valuable for the enlargment of CroWN. After manual validation, 10,884 new synset-variant pairs were added to CroWN, achieving a total of 62,075 synset-variant pairs.