Meaning of 替名代 in Japanese

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Definition of 替名代

かわる(kawaru) 【替わる ·代わる ·換わる ·替る ·代る ·換る】

(v5r, vi) to succeed; to relieve; to replace
ジムは、ベティーにかわって手紙を書いた。
Jim wrote the letter for Betty.
to take the place of; to substitute for; to take over for; to represent
to be exchanged; to change (places with); to switch

みょうだい(myoudai) 【名代】

(n) proxy; representative
私の一番上の兄が父の名代としてその会合に出席した。
My oldest brother attended the meeting on behalf of our father.

なだい(nadai) 【名代】