A pioneer or early advocate of a particular cause, prophet of a belief.
A top-ranking ecclesiastical official in the twelve seat administrative council of The Church of Jesus Christ of Latter-day Saints.
A missionary, or leader of a religious mission, especially one in the early Christian Church (but see Apostle).
A letter dismissory.
The trial court record sent to an appeal court concerning an appeal.
A note sent to an appeals court presenting the appeal in summary.
One who indoctrinates.