What term describes a language style characterized by specific features related to particular disciplines, subjects, professions, or social roles of the speaker?

Explanation

A dialect refers to a regional or social variety of a language. An idiolect is the unique language use of an individual. Register is the language variety defined by the context, including specific fields, topics, professions, or social roles. Slang consists of informal, often nonstandard words or phrases used within certain groups.