大禹 Traditional form: 大禹 Pinyin (reading): Dà Yǔ Definitions: Yu the Great (c. 21st century BC) mythical leader who tamed the floods Characters: 大 - big, great, vast, high, deep 禹 - legendary Hsia dynasty founder Traditional characters: 大 - big, great, vast, high, deep 禹 - legendary Hsia dynasty founder