argot

Noun

WordNet 3.0

Noun (1)

  1. a characteristic language of a particular group (as among thieves)“they don't speak our lingo”Synonyms: slangcantjargonlingopatoisvernacular
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Webster's Dictionary (GCIDE)

Argot \Ar`got"\, n. [F. Of unknown origin.] A secret language or conventional slang peculiar to thieves, tramps, and vagabonds; flash. [1913 Webster]
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