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office; official
chief; head
person (usually a woman) who officiates at religious ceremonies (on the Yaeyama Islands in Okinawa)
「官」 has another reading with different meanings.
官の仕事は責任が重い。
Government work carries heavy responsibility.
高い官に就くのは容易ではない。
Reaching a high position is not easy.
官として民のために尽くした。
As an official, I served the people.