evangelist

noun

1. 1

   An itinerant or special preacher, especially a revivalist, who conducts services in different cities or locations, now often televised.

2. 2

   A writer of a gospel, especially the four New Testament Gospels (Matthew, Mark, Luke, and John), usually Evangelist.

3. 3

   (primitive Church) A person who first brought the gospel to a city or region.

4. 4

   (Mormon Church) A patriarch.

5. 5

   A person marked by extreme enthusiasm for or support of any cause, particularly with regard to religion.

6. 6

   A person hired to promote a particular technology.