jargon define
The definition of jargon is the language of a particular trade or group that would be meaningless to others.oun. 1  The specialized language of a trade, profession, or similar group, especially when viewed as difficult to understand by outsiders: a crime novel that uses a lot of police jargon. 2  Nonsensical or incoherent language: âYour description will be considered as mere jargon by every man of senseâ (Alexander Hamilton).