This article presents the evolution of the use of two words in parliamentary debates, immigrato and extracomunitario, frequently used in Italian language in reference to a foreign person entering the country with the aim of staying. The corpus consists of the transcripted texts of the parliamentary debates related to eight laws on immigration between 1986 and 2019, analysed with both quantitative and qualitative methods. Collocations and co-occurences with verbs and adjectives are taken into consideration, as well as figurative language.