D defs.my
Entry 1 sense Webster, 1913

Signor

/sēn'-yôr/ · Si·gnor · IPA /ˈsiːnjɔr/
01 n. Sir; Mr.; -- a title of address or respect among the Italians. Before a noun the form is Signor.
  1. 1.
    Sir; Mr.; -- a title of address or respect among the Italians. Before a noun the form is Signor.