Shinto \Shin"to\, Shintiism \Shin"ti*ism\, n. [Chin. shin god + tao way, doctrine.] One of the two great systems of religious belief in Japan. Its essence is ancestor worship, and sacrifice to dead heroes. [Written also {Sintu}, and {Sintuism}.] Sinto \Sin"to\, or Sintu \Sin"tu\, Sintoism \Sin"to*ism\, Sintoist \Sin"to*ist\ . See {Shinto}, etc.