プログレッシブ和英中辞典(第4版)の解説
いちだい【一代】
❶〔一世代〕one [a] generation；〔一生〕one's lifetime
彼が一代で築き上げた財産
a fortune built up in his lifetime
一代の不覚
the greatest mistake of one's life
一代前まで
until a generation ago
❷〔その時代〕the time; the day
彼は一代の英雄だった
He was the greatest hero of his [the] day.
一代記
a biography; a life
出世一代記
a success story
一代雑種
the first filial hybrid