Main entry: vernacular
Definition: the everyday speech of the people (as distinguished from literary language)
Main entry: vernacular, patois, cant, slang, argot, jargon, lingo
Definition: a characteristic language of a particular group (as among thieves)
Usage: they don't speak our lingo
Main entry: common, vernacular, vulgar
Definition: being or characteristic of or appropriate to everyday language
Usage: common parlance; a vernacular term; vernacular speakers; the vulgar tongue of the masses; the technical and vulgar names for an animal species