The course aims to provide the students with an introduction to the levels of analysis into which language is articulated. It will present to students the basic notions of morphology, lexicon, semantics and pragmatics as independent levels of analysis but interrelated. Basic notions of syntax will be introduced to allow students to understand the notions related to the processing of sentences and lexical items. At the end of the course students will be able to understand and analyze words, sentences and utterances on the basis of the acquisition of the theoretical concepts.