This is the 518th most frequent Italian word.
paolo
The Italian word "paolo" is a male given name equivalent to "Paul" in English.
Proper noun - it serves as the subject and names a person.
Paolo vive in Italia.
Paolo lives in Italy.
Possessive - it indicates ownership of the noun 'book'.
Il libro di Paolo è nuovo.
Paolo's book is new.
Direct object - it indicates the person who is the receiver of the action in the sentence.