ビッグ４Meanings1nounThe Big Four (book)work of art, literature, music, etc.Title of an Agatha Christie detective novel featuring Hercule Poirot.アガサ・クリスティーの『ビッグ４』はポアロシリーズの一いっ作さくだ。Agatha Christie's 'The Big Four' is one of the Poirot series.
