nosedive2 verb [intransitiveI] 1 BLESSif a price, value, or condition of something nosedives, it suddenly goes down or gets much worse 〔价格、价值或状况〕急降,猛跌 SYN plummet Sales have nosedived since January. 自1月份以来销售额骤降。
2. TTAif a plane nosedives, it drops suddenly and steeply with its front end pointing towards the ground 〔飞机〕垂直俯冲