2> Old world style, new world style.
Old world style wines are very food friendly, have a higher acidity level, and are less fruit driven. In some regions this is all that can be produced due to the terrior. Terrior ( A sense of place, the climate, soil, and so on.). As an example think of a Chianti, nice to sip, but better with food. But there are new world wines that have an old world style. For example La Crema Sonoma coast Pinot Noir. It is very Burgundian in style. Since it grows in a colder climate it has a higher acidity level. Also it is picked slightly less ripe than say a Santa Barbara Pinot Noir. Hence old world style.
New world style, less acidity, riper, fruit forward, larger, good with food but better on its own. As an example think of an Australian Shiraz, nice with food, but better as a sipper. But there are old world wines that have a new world style. For example, a Cote Chalonnaise Pinot Noir, warmer weather, longer growing season, less acidity, larger, and fruit forward. Hence new world style.