第だい一いち楽がく章しょうだいいちがくしょうMeanings1nounfirst movementUsed in classical music to refer to the first movement of a symphony, sonata, concerto, etc.ベートーベンの交こう響きょう曲きょく第だい五ご番ばんの第だい一いち楽がく章しょうはとても有ゆう名めいだ。The first movement of Beethoven's Fifth Symphony is very famous.