A characteristic language of a particular group (as among thieves)
English: slang, cant, jargon, lingo, argot, patois, vernacular
vernacularEnglish
vernacular, argot, cant, common, jargon
Noun
The everyday speech of the people (as distinguished from literary language)
English: vernacular
Adjective
Being or characteristic of or appropriate to everyday language
English: common, vernacular, vulgar