太祖 Traditional form: 太祖 Pinyin (reading): tàizǔ Definitions: Great Ancestor (posthumous title, e.g. for the founder of a dynasty) Characters: 太 - very, too much; big; extreme 祖 - ancestor, forefather; grandfather; surname Traditional characters: 太 - very, too much; big; extreme 祖 - ancestor, forefather; grandfather; surname