vernacular
1. [ noun ] a characteristic language of a particular group (as among thieves)
Synonyms: jargon argot lingo slang patois cant
Examples:

"they don't speak our lingo"

Related terms: non-standard_speech rhyming_slang street_name wog baby nervousness clean pile deck stuff built buy_it besotted legs chuck uncool some hoof square-bashing square bunfight boffin mean guvnor pint-size bolshy can-do bite caff slam-bang feel corker squeeze baloney folderol burnup nosh-up bunk_off heist gat schlock freaky shakedown out-and-outer schlockmeister bad_egg 'hood old_man good_egg airhead niff shakedown give drop-dead bitch juice bumf key juice cert slang
2. [ adjective ] being or characteristic of or appropriate to everyday language
Synonyms: common vulgar
Examples:

"common parlance" "a vernacular term" "vernacular speakers" "the vulgar tongue of the masses" "the technical and vulgar names for an animal species"

Related terms: informal
3. [ noun ] the everyday speech of the people (as distinguished from literary language)
Related terms: non-standard_speech
Similar spelling:   vermicular