For a long time categorial grammars were regarded as "toys grammars". Indeed, in spite of a very solid theoretical base, categorial grammars remain rather marginal as soon as it is a question of conceiving concrete applications. However, this model of grammars has an unquestionable advantage compared to the majority of the other grammatical models: it is multilingual; multilingualism becoming, with the rise of the Web, one of the most significant constraints in the development of tools for natural language processing. In our article we show a multilingual approach for the extraction of the complex terms using a linguistic filter founded on a categorial model.