プログレッシブ和英中辞典(第4版)の解説
しゅっせ【出世】
success in life；〔昇進〕(a) promotion
両親は息子の出世を見て喜んだ
His parents were glad 「of their son's success [their son had succeeded] in life.
彼はとんとん拍子に出世した
He rose rapidly in the world.
彼は局長にまで出世した
He was promoted to bureau chief.／He rose to the position of bureau chief.
出世魚
a fish that is called by different names at different stages of growth
出世頭
彼が高校時代のクラスの出世頭だ
He is the most successful person among my high-school classmates.
出世作
その曲が彼の出世作だ
That work 「brought him recognition [was his breakthrough] (as a composer).