plunged
v. B2 Upper Intermediate US //ˈpɫəndʒd// UK //plˈʌndʒd// plunged
v. to fall or move down very quickly and with great force. You can use it to describe a person jumping into water or a price dropping suddenly.
v. to fall, dive, or drop suddenly and with considerable force from a high level. Often used metaphorically to describe rapid decreases in value, temperature, or status.
The stock market plunged after the news broke.
The swimmer plunged into the cold lake to wake himself up before the race began.
As the global economy slowed, oil prices plunged to their lowest levels in a decade, forcing many energy companies to reconsider their long-term infrastructure investments.
Usage
The verb is intransitive when describing a fall, but can be transitive when an object is pushed into something ('he plunged the dagger').