A person who seeks to convert others to the Christian faith, especially by public preaching. The evangelist traveled from town to town, spreading the message of the gospel.
A zealous advocate of a particular cause. She became an evangelist for renewable energy, speaking at conferences and writing articles to promote its benefits.
One of the four authors of the Gospels in the New Testament: Matthew, Mark, Luke, and John. The evangelist John is known for his unique perspective on the life and teachings of Jesus.