- 1a sudden movement downward or away from something synonym drop The calm water ends there and the river begins a headlong plunge.
- 2plunge (in something) a sudden decrease in an amount or the value of something synonym drop a dramatic plunge in profits a sharp plunge in the stock markets This increase reversed an earlier price plunge.
- 3plunge into something the act of becoming involved in a situation or activity The company is planning a deeper plunge into the commercial market.
- 4an act of jumping or diving into water; a quick swim He took the plunge into the deep end. She went for a plunge. Idioms
to decide to do something important or difficult, especially after thinking about it for a long time They finally decided to take the plunge and get married.
take the plunge (informal)jump to other results