noun

1. A secret language or conventional slang peculiar to thieves, tramps and vagabonds.

2. The specialized informal vocabulary and terminology used between people with special skill in a field, such as between doctors, mathematicians or hackers.

   “The conversation was in the argot of the trade, full of acronyms and abbreviations that made no sense to the uninitiate.”

Synonyms: cant, jargon, slang, jargon