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agency (government department between a ministry and a bureau under the ritsuryō system)
「職」 has another reading with different meanings.
彼は会社で高い職に就いて活躍している。
He holds a high position.
不況で多くの人が職を失った。
Many people lost their jobs due to the recession.
彼女は新しい職を求めて転職活動をしている。
She is job hunting in search of a new position.