affluent vs upscale

affluent

adj
  • Abounding in goods or riches; having a moderate level of material wealth. 

  • Abundant; copious; plenteous. 

  • The Upper East Side is an affluent neighborhood in New York City. 

noun
  • A stream or river flowing into a larger river or into a lake; a tributary stream; a tributary. 

  • Somebody who is wealthy. 

upscale

adj
  • Marked by wealth or quality; high-class; upmarket. 

verb
  • To increase in size, to scale up. 

How often have the words affluent and upscale occurred in a corpus of books? (source: Google Ngram Viewer )