What does "jargon" refer to?

"Jargon" refers specifically to the specialized terminology used by a particular group or profession. It consists of words and phrases that are often difficult for outsiders to understand because they are tailored to the specific needs and experiences of that group. For instance, medical jargon includes terms and abbreviations used by healthcare professionals that may be unfamiliar to the general public. The use of jargon helps facilitate communication among those within the group but can create barriers for those outside it.

The other options do not accurately capture the essence of jargon. Simple language serves to communicate effectively to a broad audience, rather than being specialized. A type of musical term is too narrow and does not encompass the broader concept of jargon used across various fields. Lastly, while slang may share some characteristics with jargon, it is generally more casual and not confined to professional or technical contexts.