Snob

noun

1. A person who wishes to be seen as a member of the upper classes and who looks down on those perceived to have inferior or unrefined tastes.
2. A cobbler or shoemaker.
3. A member of the lower classes; a commoner.
4. A workman who works for lower wages than his fellows, or who will not join a strike.
5. (Cambridge University) A townsman, as opposed to a gownsman.