how to difference whether the wine?

[wayne78]

hi all
how do we know that the wine are fruity or dry or off dry
like innkeeper say that most read wine are dry but i try some of the red wine aren't dry at all
how do we understand that the wine are dry or how to difference it? cause some of the label are not state it.
pls help.......

another question is why at the bottom of every bottle have a deeper hole ( i mean the punch if i am not wrong?)
izzit deeper the better? and why need the be deeper?