海

surname Hai

ocean / sea / CL:個|个[ge4],片[pian4] / great number of people or things / (dialect) numerous

each / every

"water" radical in Chinese characters (Kangxi radical 85), occurring in 沒|没[mei2], 法[fa3], 流[liu2] etc / see also 三點水|三点水[san1 dian3 shui3]

Shanghai municipality, central east China, abbr. to 滬|沪[Hu4]

Shanghai Jiao Tong University

Shanghai Cooperation Organisation (SCO)

Commercial Press, Shanghai (from 1897)

Shanghai International Studies University (SISU)

Shanghai Grand Theater

Shanghai University

Shanghai municipality in southeast China, abbr. 滬|沪

Shanghai Medical University

Shanghai Stadium

lit. to climb mountains of swords and enter seas of flames (idiom) / fig. to go through trials and tribulations (often, for a noble cause)