Judaism      
noun [ U ]  religion uk/ˈdʒuː.deɪ.ɪ.zəm/ us/ˈdʒuː.deɪ.ɪ.zəm/
 犹太教
the religion of the Jewish people, based on belief in one God and on the laws contained in the Torah and Talmud
 - More examples
 - He converted to Judaism.
 - She is an expert on Judaism.