apostle
noun
Definition
a leader or teacher of a (new) faith or movement
Synonyms
1. proponent
2. advocate
3. converter
Antonyms
1. enemy
2. antagonist
3. adversary
Sentences
1. Rachel needed to do research about the apostle of the human rights movement.
2. Veronica's dream is to become an apostle of some kind of educational movement.
What is an Apostle? Part 1