plummet به انگلیسی
From Longman Dictionary
plum‧met /ˈplʌmɪt/ (also plummet down) verb [intransitive]
to suddenly and quickly decrease in value or amount
to fall suddenly and quickly from a very high place
Example
With a sudden drop-pounce, he plummets
The ledges gleamed in the air briefly in the gray light then plummeted as the water gargled and spat all around them
Enrollment at the school has plummeted to 25 students
The helicopters slammed together before plummeting to the ground
Two aircraft on a training flight collided and plummeted to the ground
