[noun] [C]Missionaries are people who have been sent to a foreign country to teach their religion to the people who live there.He did missionary work for the Presbyterian Church in Alaska.(figurative) Paul manages to inspire us with a missionary zeal (= very great enthusiasm) for our work.The missionary position is a position for having sex in which a woman lies on her back and her partner is above and facing her.
MISSIONARY
Meaning of MISSIONARY in English
Cambridge English vocab. Кембриджский английский словарь. 2012