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English definition of “plunge”

plunge

verb [I or T]     /plʌndʒ/
to go down in amount or value very quickly and suddenly: markets/sales plunge Car sales plunged in France in June.plunge to sth Share prices plunged $16.74, or 44%, to $20.51 a share.plunge by sth The Dow was 40 points ahead, having plunged by 60 points shortly after the opening bell.plunge from sth Visitor numbers plunged from 25million in 2010 to 22.8million - but they are now recovering.
(Definition of plunge verb from the Cambridge Business English Dictionary © Cambridge University Press)
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