argot
/ˈɑːrɡoʊ/; /ärˈɡō/Definitions
1. noun
A secret or special language used by a particular group, especially thieves or criminals.
“The police were unable to decipher the argot used by the gangsters.”
2. noun
A vocabulary or phraseology peculiar to a particular region, class, or profession.
“The local dialect was a unique argot that was not easily understood by outsiders.”
3. verb
To use a secret or special language, especially to hide the meaning of something from outsiders.
“The politicians were accused of argotting the details of the deal to avoid scrutiny.”