プログレッシブ和英中辞典(第4版)の解説
こうにん【後任】
a successor
彼の後任は山田さんだ
Mr. Yamada will succeed [replace] him in his post.／Mr. Yamada will fill [succeed to] his place [post].
ホテルの支配人の後任に適当な人が見つからない
We haven't found a suitable person to take over the management of the hotel.