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samurai's attendant; footman
「中間」 has another reading with different meanings.
この駅は始発駅と終点の中間にある。
This station is in the middle between the first and last stations.
中間報告をまとめて上司に提出した。
I compiled the interim report and submitted it to my boss.
成績は中間くらいで特別良くも悪くもない。
My grades are around the middle, neither good nor bad.