1. City: Most commonly, "Pisa" refers to the city of Pisa in Tuscany, Italy. It is famous for its leaning tower, the Duomo, and other historical landmarks.
2. Noun: "Pisa" can also be used as a noun to describe something from Pisa or a resident of Pisa. For example:
* "La torre di Pisa" (The tower of Pisa)
* "Un pisano" (A person from Pisa)
3. Adjective: Less commonly, "Pisa" can be used as an adjective, meaning related to Pisa. For example:
* "Il vino pisano" (Pisan wine)
4. Verb: In some dialects of Italian, "pisare" means to crush or to stomp.
It's important to consider the context of the sentence to understand the specific meaning of "Pisa".