Hypertext Webster Gateway: "argot"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Argot \Ar`got"\, n. [F. Of unknown origin.]
A secret language or conventional slang peculiar to thieves,
tramps, and vagabonds; flash.
From WordNet (r) 1.7 (wn)
argot
n : a characteristic language of a particular group (as among
thieves); "they don't speak our lingo" [syn: {cant}, {jargon},
{slang}, {lingo}, {patois}, {vernacular}]
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