noun
Sinosphere; Chinese-character cultural sphere
Refers to the group of countries and regions in East and Southeast Asia where Chinese characters have been historically used in writing, including China, Japan, Korea, and Vietnam.
漢字文化圏に属する国々では、漢字が共通の文字として使われてきた。
In countries belonging to the Sinosphere, Chinese characters have been used as a common script.
Compound of 漢字 (kanji, 'Chinese characters'), 文化 (bunka, 'culture'), and 圏 (ken, 'sphere'). The term is a modern coinage used in academic and cultural discourse.