apostle apostle /əˈpɔsəl/

noun

1. An ardent early supporter of a cause or reform  ( apostle )
   an ardent early supporter of a cause or reform
    An apostle of revolution
   an apostle of revolution
   

 Apostle

1. (New Testament) one of the original 12 disciples chosen by Christ to preach his gospel  ( Apostle )
   (New Testament) one of the original 12 disciples chosen by Christ to preach his gospel
    Peter, an Apostle, played a significant role in spreading Christianity during its early years.
   Peter, an Apostle, played a significant role in spreading Christianity during its early years.
   
   
2. Any important early teacher of Christianity or a Christian missionary to a people  ( Apostelic Father , Apostle )
   any important early teacher of Christianity or a Christian missionary to a people