What is the classical Chinese meaning of 或? I am reading a text that uses the following phrase:


  或謂鄭相曰


I understand it generally to mean that 


  someone told to the prime minister of Zheng saying


However, I don't understand exactly what the character 或 means here.
It means "someone" in this case.

From zdic:


  某人，有的人


From Iciba:


  [书] （某人； 有的人） someone ； some people