Linguistics term for a variety of language used in a particular social setting or for a specific purpose, such as formal vs. informal speech.
See also: 使用域
Depending on the register, the same content can be expressed differently.
この論文では、書き言葉の言語使用域を分析している。
This paper analyzes the register of written language.
A broader term for 'register' or 'domain of use'; 言語使用域 explicitly specifies 'language register'.
Compound of 言語 (language) and 使用域 (register/domain of use).