This paper is dealing with several problems related to the integration of the two following resources, Wordnet (Fellbaum 1998) and Le Dictionnaire Integral – LDI (Dutoit 1992). The LDI project began in 1988 in France and is based on different principles and goals from Wordnet. Nevertheless,LDI and WordNet have much in common and their integration is possible and highly expected so asto share the information contained in these twomodels. In the first section we will see in what extent the two linguistic models differ and we will mention some of the reasons of their differences.The two implemented technical data models are schematised and compared. In a second section we explain the integration tasks of the two models and the actual state of the integration process. In the conclusion, we see how it will soon be possible to consult the resulting merge and how to update the data on the Internet.