1) Adult male 2) Gentleman of verona 3) Italian mister 4) Milanese monsieur 5) Mister in Milano 
• (n.) Sir; Mr.; -- a title of address or respect among the Italians. Before a noun the form is Signor.
[n] - an Italian title of respect for a man
signor, signore (s); signori (pl) The Italian form of title or address for a highly respected man or a man of advanced age. It is equivalent to English 'sir'.
noun an Italian title of respect for a man; equivalent to the English `sir`; used separately (not prefixed to his name)