plummet

US /ˈplʌmɪt/

UK /ˈplʌmɪt/

C1TOEIC
v.i.Intransitive VerbTo fall quickly, as from the sky
We watched as the baseball began to plummet toward the stands
v.i.Intransitive VerbTo decrease rapidly in value or amount.
Stock prices plummeted after the company announced its losses.
n. (c.)Countable NounA plumb bob.
The construction worker used a plummet to ensure the wall was perfectly vertical.
n. (c.)Countable NounA weight attached to a line, used to determine depth or verticality.
The fisherman attached a plummet to the line to make it sink.

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