verb (v)

• cater to popular taste to make popular and present to the general public; bring into general or common use(verb.communication)

  Example:
  Relativity Theory was vulgarized by these authors.
  

  Synonym:
  generalise, generalize, popularise, popularize, vulgarise
  

  source: wordnet30
• debase and make vulgar(verb.change)

  Example:
  The Press has vulgarized Love and Marriage.
  

  Synonym:
  vulgarise
  

  source: wordnet30
• act in a vulgar manner(verb.body)

  Example:
  The drunkard tends to vulgarize.
  

  source: wordnet30
• To make vulgar, or common.(verb)

  source: webster1913