洪渊 Traditional form: 洪淵 Pinyin (reading): hóngyuān Definitions: vast and profound Characters: 洪 - deluge, flood; immense, vast 渊 - abyss, depth; to surge up, to bubble up Traditional characters: 洪 - deluge, flood; immense, vast 淵 - abyss, depth; to surge up, to bubble up