马云 Traditional form: 馬雲 Pinyin (reading): Mǎ Yún Definitions: Ma Yun (1964-), aka Jack Ma, Chinese billionaire businessman, co-founder of Alibaba 阿里巴巴 ( Alǐbābā) Characters: 马 - horse; surname 云 - cloud; to say, to speak Traditional characters: 馬 - horse; surname 雲 - cloud; to say, to speak