湄南河 Traditional form: 湄南河 Pinyin (reading): Méinán Hé Definitions: Chao Phraya River (aka Menam), the main river of Thailand Characters: 湄 - bank, coast, shore 南 - south; southern; southward 河 - river, stream; the Yellow river Traditional characters: 湄 - bank, coast, shore 南 - south; southern; southward 河 - river, stream; the Yellow river