Seen-YOH-ray
Here's a breakdown:
* "Signore" starts with a soft "s" sound, like the "s" in "sin".
* "Signore" has a long "e" sound like the "e" in "see".
* "Signore" ends with a stress on the second syllable, "yo".
Note: The "o" in "signore" is pronounced like the "o" in "go".