プログレッシブ和英中辞典(第4版)の解説
いっとう【一等】
❶〔等級〕the first class [rank; grade]
彼は通常一等で旅行する
He usually travels first class.
彼女は一等になった
〔レースなどで〕She came in first.／〔コンテストなどで〕She won (the) first prize.
❷〔罪の等級〕a degree
罪一等を減ずる
reduce the penalty by one degree
❸〔最も〕most; best ⇒いちばん（一番）
一等機関士
a first engineer
一等客
a first-class passenger；〔船客〕a saloon passenger
一等航海士
a first officer; a first [chief] mate
一等車
a first-class car [《英》 carriage]
一等賞
first prize
一等親
一等星
a star of the first magnitude
一等船室
a first-class cabin
一等地
a very good piece of land; an excellent location
彼の店はこの町の一等地にある
His store is located in the best commercial district in town.
一等品
a first-class [top-grade] article