Princeton's WordNet

1. popularize, popularise, vulgarize, vulgarise, generalize, generalise(verb)

   cater to popular taste to make popular and present to the general public; bring into general or common use

   "They popularized coffee in Washington State"; "Relativity Theory was vulgarized by these authors"

2. vulgarise, vulgarize(verb)

   debase and make vulgar

   "The Press has vulgarized Love and Marriage"

3. vulgarize, vulgarise(verb)

   act in a vulgar manner

   "The drunkard tends to vulgarize"