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Signore = Mr.

Signora = Mrs.

Signorina = Miss

Avvocato = Lawyer

Ingegnere = Engineer

Professore = Masculine professor

Professoressa = Feminine professor

Dottore = Masculine doctor

Dottoressa = Feminine doctor

Insegnante = Teacher

On those masculine titles that end with 'ore'; the final 'e' is dropped before the person's last name:

Signor Bianchi = Mr. Bianchi

Professor Ricci = Professor Ricci

Feminine titles remain unchanged.