From pizza and caffe' to the tramezzino, food dominates the list of Italian words most widely used around the world. One surprise among the top five is "jeans", a term of Italian origin. These words have become well-established in other languages, bringing with them stories of traditions, inventions, and discoveries, as told by "Onde - Parole italiane in viaggio" (Onde – Italian Words on the Move), a Treccani Cultura Foundation project created in collaboration with the Ministry of Foreign Affairs and International Cooperation for the Week of the Italian Language in the World 2026. The theme is "A brilliant language: conceiving, designing and creating in Italian" and its content will be provided free of charge to all Italian Cultural Institutes worldwide. First place belongs to pizzaiuolo, "the artisan who prepares Neapolitan pizza using codified and handed down techniques". Espresso and moka take second and third place. Fourth is tramezzino, defined as a "triangular sandwich made with soft, crustless bread and a filling". The term was established in 1925 at Turin's Caffè Mulassano by Angela Demichelis, who redesigned the sandwich with Italian ingredients. In fifth position is jeans, a word few identify with Italy but comes from Gênes, the French name for Genoa, a port from which a strong cotton fabric was shipped. As early as 1860, this material was used for the trousers worn by Garibaldi and his Thousand, now preserved at the Central Museum of the Risorgimento. It is believed that the term "blue de Gênes", which translates to "Genoa blue", is the source of the international popularity of blue jeans. The words ranked between fifth and tenth place include carpaccio, italic, stucco, soprano and falsetto.