1. Wu; region in China, south of the lower Yangtze
2. Wu; Southern Wu; kingdom in China during the Five Dynasties and Ten Kingdoms era (902 CE-937 CE)
3. Wu; Eastern Wu; Sun Wu; kingdom in China during the Three Kingdoms era (222 CE-280 CE)
4. Wu; kingdom in China during the Spring and Autumn era (11th C-473 BCE)