linguistic:paraphrasing, linguistic:translation
Definitions

In common usage, the term "East Asia" typically refers to a region including Greater China, Japan, Korea and Mongolia.

China, Japan, and Korea represent the three core countries and civilizations of traditional East Asia - as they once shared a common written language, culture, as well as sharing Confucian philosophical tenets and the Confucian societal value system once instituted by Imperial China. Other usages define China, Hong Kong, Macau, Japan, North Korea, South Korea and Taiwan as countries that constitute East Asia based on their geographic proximity as well as historical and modern cultural and economic ties, particularly with Japan and Korea in having retained strong cultural influences that originated from China. Some scholars include Vietnam as part of East Asia as it has been considered part of the greater Chinese cultural sphere. Though Confucianism continues to play an important role in Vietnamese culture, Chinese characters are no longer used in its written language and many scholarly organizations classify Vietnam as a Southeast Asian country. Mongolia is geographically north of Mainland China yet Confucianism and the Chinese writing system and culture had limited impact on Mongolian society. Thus, Mongolia is sometimes grouped with Central Asian countries such as Turkmenistan, Kyrgyzstan, and Kazakhstan. Xinjiang and Tibet are sometimes seen as part of Central Asia (see also Greater Central Asia).

Broader and looser definitions by international agencies and organisations such as the World Bank refer to East Asia as the "three major Northeast Asian economies, i.e. mainland China, Japan, and South Korea ", as well as Mongolia, North Korea, the Russian Far East, and Siberia. The Council on Foreign Relations includes the Russia Far East, Mongolia, and Nepal. The World Bank also acknowledges the roles of Chinese special administrative regions Hong Kong and Macau, as well as Taiwan, a country with limited recognition. The Economic Research Institute for Northeast Asia defines the region as "China, Japan, the Koreas, Nepal, Mongolia, and eastern regions of the Russian Federation ".

The UNSD definition of East Asia is based on statistical convenience, but others commonly use the same definition of Mainland China, Hong Kong, Macau, Mongolia, North Korea, South Korea, Taiwan, and Japan.

Certain Japanese islands are associated with Oceania due to non-continental geology, distance from mainland Asia or biogeographical similarities with Micronesia. Some groups, such as the World Health Organization, categorize China, Japan and Korea with Australia and the rest of Oceania. The World Health Organization label this region the "Western Pacific", with East Asia not being used in their concept of major world regions. Their definition of this region further includes Mongolia and the adjacent area of Cambodia, as well as the countries of the South East Asia Archipelago (excluding East Timor and Indonesia).