I'm sorry but I think you will find that there is no synonym for the word Shintoism as it is the direct translation of a religion.
It's like asking if there's another word for Buhddism, or Judaism, or Islam, or Christianity (Cathlosism, Lutheranism etc are not other names for Christianity they are different factions of the religion).
There is no founder for Shintoism
There is know founder for shintoism.
Shintoism, Shinto
Shintoism is the major religion in Japan.
Jomon
The Halawali is the key text of Shintoism.
Shintoism is a spiritual practice in Japan
Shintoism people worship at shrines I think
Shintoism became Japan's main religion before.
The Romans did not have any contacts with Shintoism
Shintoism and Sikhism were both founded in the continent of Asia.
Shintoism is an ancient philosophical religion in Japan. Some social issues in Shintoism are: its lack a clear chain of identity and a lack of centralization.