missionary
noun
[ ˈmɪʃ(ə)n(ə)ri ]
• a person sent on a religious mission, especially one sent to promote Christianity in a foreign country.
Similar:
evangelist,
apostle,
proselytizer,
preacher,
televangelist,
minister,
priest,
campaigner,
crusader,
champion,
converter,
promoter,
advocate,
proponent,
missionary
adjective
• relating to or characteristic of a missionary or a religious mission.
• "missionary work"
Origin:
mid 17th century: from modern Latin missionarius, from Latin missio (see mission).