Is a language that is understood by people in particular group or field but not always those outside the group?

Jargon is specialized language used by people in a particular profession, trade, or group. It can include technical terms, slang, abbreviations, and other forms of language that are specific to that group and may not be understood by those outside of it.

Here are some examples:

* Medical jargon: "The patient presented with a history of dyspnea and orthopnea."

* Computer programming jargon: "We need to refactor the codebase to improve its efficiency."

* Legal jargon: "The defendant was found guilty of grand larceny."

While jargon can be useful for efficient communication within a group, it can also be a barrier to understanding for those who are not familiar with it.