nosedive2 verb [intransitiveI]1 BLESSif a price, value, or condition of something nosedives, it suddenly goes down or gets much worse 〔價格、價值或狀況〕急降,猛跌 SYN plummetSales have nosedived since January. 自1月份以來銷售額驟降。
2. TTAif a plane nosedives, it drops suddenly and steeply with its front end pointing towards the ground 〔飛機〕垂直俯沖