- 万国邮联 wànguóyóulián Universal Postal Unionabbreviation for the Universal Postal Union (UPU)
- 万国宫 wànguógōng Palais des NationsThe Palais des Nations in Geneva, Switzerland, serving as the home of the United Nations Office at Geneva
- 万国博览会 wànguóbólǎnhuì world's fairworld's fair; universal exposition; an international exhibition designed to showcase achievements of nations in science, art, and industry
- 万国音标 wànguóyīnbiāo International Phonetic AlphabetThe system of phonetic symbols used for representing the sounds of spoken languages; also known as [[国际音标|國際音標|guo2 ji4 yin1 biao1]].
- 万国码 wànguómǎ UnicodeA universal standard for the digital encoding of the world's writing systems to ensure consistent text display and processing
- 万国语音学字母 wànguóyǔyīnxuézìmǔ International Phonetic Alphabetsystem of phonetic notation based on the Latin alphabet to represent the sounds of spoken languages
- 万国邮政联盟 wànguóyóuzhèngliánméng Universal Postal UnionUniversal Postal Union; a United Nations specialized agency that coordinates postal policies among member nations