Wine names

[Innkeeper]

Hi Gilbertlau, and welcome to the Wine Board. You have asked enough questions in your post to fill many books with the answers. Every country has different traditions and regulations which makes standard wine labels almost impossible. Even in the U.S. where things are fairly standard, there is still plenty of confusion. For example the word "Reserve" on a label means absolutely nothing legally, but only has meaning for the producer.

Since you seem to have been visiting wine stores and not just perusing the isles in a supermarket, you are in a good place. Ask questions. The people in a wine store are there to sell wine, and by answering your questions, they hope to do so.