Most of the flavours you get when you taste wine come through your nose as it’s connected to the back of your mouth.
Tasting is an extension of smelling. Most of the flavours you get when you taste wine come through your nose as it’s connected to the back of your mouth. The technical term for this is retronasal olfaction. Plus you are also getting your five tastes: bitter, sweet, salt, acid and umami (savouriness), and the physical feel from tannins, alcohol etc. of having the wine in your mouth.