patois

Noun

1. a characteristic language of a particular group (as among thieves); “they don’t speak our lingo”
   • Synonyms
     • slang
     • cant
     • jargon
     • lingo
     • argot
     • vernacular
   • Less specific
     • non-standard speech
   • More specific
     • street name
     • rhyming slang
   • Related
     • slangy
     • slang
2. a regional dialect of a language (especially French); usually considered substandard
   • Less specific
     • dialect
     • idiom
     • accent