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to install (a king, emperor, etc.)
to appoint (to a post); to promote
to assign (to study under)
若い王子を王位に就けた。
They installed the young prince on the throne.
彼を責任者に就けました。
We appointed him as manager.
新しい指導者を地位に就けるのは容易ではない。
Installing a new leader in the position is not easy.