武则天 Traditional form: 武則天 Pinyin (reading): Wǔ Zétiān Definitions: Wu Zetian (624-705), Tang empress, reigned 690-705 Characters: 武 - military; martial, warlike 则 - rule, law, regulation; grades 天 - sky, heaven; god, celestial Traditional characters: 武 - military; martial, warlike 則 - rule, law, regulation; grades 天 - sky, heaven; god, celestial