noun

• (informal, derogatory) 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.
  "Proceed as a snob climbing the social ladder, namely, know the best people in the neighbourhood, then the best people they know. The end is not that of snobbery, but an eternal treasure."
• (colloquial) A cobbler or shoemaker.
  "The snobs were also kind to him, and gave him a pair of boots which they assured him were of a type and quality reserved entirely for officers […]"
• (dated) A member of the lower classes; a commoner.
  "'D'ye know a slap-up sort of button, when you see it?' said the youth. 'Don't look at mine, if you ain't a judge, because these lions' heads was made for men of taste: not snobs.'"
• (archaic) A workman who works for lower wages than his fellows, especially one who will not join a strike (a scab).