In this article we intend to describe some aspects of language teaching as a foreign language for university students and some lexical semantics. The overall objective cognitive and procedural course of lexical semantics of French is to get developing communicative competence for languages by knowledge processes semantic incremental update in the speech meaning lexical through specific processes of contextualization, but also with the concepts semantics. Teaching lexical semantics aimed descriptive, theoretical and practical. The professional skills acquired students will be able to recognize and describe the semantic relationships contextualization usual vocabulary of the French language, to form his habit to use specialized resources in self-organizing in the interpretation of statements in a foreign language. The transversal competences Students will form skills involved the transfer to practice speaking knowledge about lexical contextualized of foreign languages, namely: identification and correct analysis of the meaning of basic items, recognition and description paraphrastic, meaning denotative and connotations contextual and self-organizing and improving the knowledge of vocabulary basic semantic structures of the French language.