信しん用よう状じょうしんようじょうMeanings1nounletter of creditA financial document issued by a bank guaranteeing a buyer's payment to a seller; used in international trade.輸ゆ出しゅつ取とり引ひきでは、信しん用よう状じょうがよく使つかわれる。In export transactions, letters of credit are often used.