1.
[syn: slang, cant, jargon, lingo, argot, patois, vernacular]
2. a regional dialect of a language (especially French); usually considered substandard;
The Collaborative International Dictionary of English v.0.48:
Patois \Pa`tois"\ (p[.a]`tw[aum]"), n. [F.]
A dialect peculiar to the illiterate classes; a provincial
form of speech.
[1913 Webster]
The jargon and patois of several provinces. --Sir T.
Browne.
[1913 Webster]
WordNet (r) 3.0 (2006):
patois
n 1: a characteristic language of a particular group (as among
thieves); "they don't speak our lingo" [syn: slang,
cant, jargon, lingo, argot, patois, vernacular]
2: a regional dialect of a language (especially French); usually
considered substandard