Generally classified as being light, medium or full, coffee body is also described as being dense, thick, creamy or heavy. If you take your coffee black, you might want a coffee with a lighter body. With milk, try a heavier variety. This rather misleading term doesn't refer to how many antacids you'll need after each cup. In fact, it doesn't relate to pH at all.
Acidity is a coffee's snap and lively palate-cleansing quality.
A coffee with a high acidity will produce a sensation in your mouth similar to that of a dry wine. Each coffee has its own distinct personality, and a flavor is its most dominate characteristic. Or is reminiscent of another flavor such as berries or cocoa. Flavored coffees such as hazelnut or cinnamon do have the flavor of their namesakes, but this is added to the bean after roasting. Despite all these definitions, taste speaks louder than words, so you might want to do some of your own experimentation.