This is the 706th most frequent Italian word.
toscana
Toscana: Tuscany, a region in central Italy known for its landscapes, art, and history.
In this sentence, "Toscana" is used as a proper noun referring to a specific geographical region in Italy.
La Toscana è una regione famosa per il suo vino.
Tuscany is a region famous for its wine.
Here, "toscana" is used as an adjective to describe a cuisine originating from Tuscany.
Adoro la cucina toscana, soprattutto la ribollita.
I love Tuscan cuisine, especially ribollita.
In this sentence, "toscane" is used as a feminine plural adjective agreeing with "colline" (hills), describing their origin or style.