The word 浦东 is formed by combining the character 浦, meaning "riverbank" and specifically referring to the Huangpu River, with 东, meaning "east". Together, they designate the geographical area east of the Huangpu River, which is the Pudong district in Shanghai.
Word Definition - 浦东
pǔ dōngPudong, a district of Shanghai to the east of the Huangpu River, full name 浦東新區|浦东新区[pǔdōng xīnqū]