Translation of "Missionary" in Japanese

You can give it back whenever you want to as I bought that book for missionary work.

いつ返してもらってもいいですよ。その本は布教用に買った本ですから。

From 1859, Protestant missionaries from America started to arrive, and the Catholic and Russian Orthodox churches also became actively involved in missionary work.

1859年以降、プロテスタント宣教師がアメリカから派遣され、またカトリックとロシア正教も布教活動を行った。