NooJ is the new linguistic development environment developed by Max Silberztein. It has been designed to replace INTEX in the near future. NooJ has been rewritten from the ground up, with a new computer architecture and an innovative linguistic engine that makes it possible to build a new set of NLP applications. Among other novelties, NooJ's linguistic engine uses a new type of lexical data base, its dictionaries, that are an improvement upon the INTEX dual system of DELA dictionaries and Lexicon-Grammar tables.