- 中日关系 zhōngrìguānxi Sino-Japanese relationsThe relationship between China and Japan
- 中日甲午战争 zhōngrìjiǎwǔzhànzhēng First Sino-Japanese Warconflict between the Qing Dynasty of China and the Empire of Japan from 1894 to 1895, primarily over influence in Korea
- 中日韩 zhōngrìhán China, Japan and KoreaThe three East Asian nations of China, Japan, and Korea
- 中日韩统一表意文字 zhōngrìhántǒngyībiǎoyìwénzì CJK unified ideographsChina Japan Korea unified ideographs; Unihan
- 中日韩越 zhōngrìhányuè CJKVChina, Japan, Korea, and Vietnam; often used in linguistics to refer to the cultures or languages using Chinese characters, including Vietnamese characters like [[喃字|喃字|nan2 zi4]].
