"vulgarise" in the verb sense
1. popularize, popularise, vulgarize, vulgarise, generalize, generalise
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
debase and make vulgar
"The Press has vulgarized Love and Marriage"
3. vulgarize, vulgarise
act in a vulgar manner
"The drunkard tends to vulgarize"
Source: WordNet® (An amazing lexical database of English)
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