This is the 31st most frequent Italian word.
e
"And."
The word 'e' is used here as a conjunction to connect two related items in a list.
Io studio la matematica e la filosofia.
I study mathematics and philosophy.
The word 'e' acts as a conjunction to join two independent clauses.
Ha detto che tornerà domani, e io gli credo.
He said he will return tomorrow, and I believe him.
The word 'e' is used to add supplementary information to the main clause.