Two of the most outstanding of the republic’s academics present the Diccionario de mexicanismos. Propios y compartidos, the result of the most complete investigation ever carried out into the Spanish spoken in Mexico, an initiative organised by the Mexican Academy of the Language. The text reveals the richness of the language used up and down the country, and it covers popular genres, clothing, culture and other matters. It includes terms from native languages such as Maya and Nahuatl as well as foreign languages such as English or French. In total, the dictionary contains: 10,587 lemmas; 431 sublemmas, which are forms of the lemma which create new meanings; 22,333 headwords and, at the end, a list of voices exclusive to Mexico. With Concepción Company, Assistant Director of the Academy. In conversation with Juan Villoro.