Answers (3)
You have single quotes and you have double quotes. You have left hand quotes and right hand quotes. There might be some other quotes I don't know about.
A font is a collection of movable type, usually cast in lead. What people call a font is actually a typeface. There are bazillions of typefaces, some named and some not. You can copyright the name of a typeface, but not the appearance. That is why you see so many identical typefaces with different names. It is fairly easy to invent a new typeface, that is why there is such a bewildering variety. Here is a nice graphic:
fontfeed.com/archives/select-type-with-the-flowchart-so-you-need-a-typeface/
Bottom line: nobody knows what you are talking about.
