Meaning of PLUMMET in English
plum ‧ met /ˈplʌmət, ˈplʌmɪt/ BrE AmE ( also plummet down ) verb [intransitive]
[ Date: 1900-2000 ; Origin: plummet 'metal weight on a plumb line' (14-21 centuries) , from Old French plommet 'small ball of lead' , from plomb ; ⇨ ↑ plumb 1 ]
1 . to suddenly and quickly decrease in value or amount SYN plunge
plummet from something to something
Profits plummeted from £49 million to £11 million.
House prices have plummeted down.
2 . to fall suddenly and quickly from a very high place SYN plunge :
The plane plummeted towards the Earth.
• • •
▪ decrease to become less in number or amount:
The average rainfall has decreased by around 30 percent.
▪ go down to decrease. Go down is less formal than decrease and is the usual word to use in conversation:
Unemployment has gone down in the past few months.
▪ decline formal to decrease – used with numbers or amounts, or about the level or standard of something:
The standard of living has declined.
Support for the government is steadily declining.
Salaries have declined by around 4.5%.
▪ diminish to become smaller or less important:
Union membership diminished from 30,000 at its height to just 2,000 today.
▪ fall/drop to decrease, especially by a large amount. Fall and drop are less formal than decrease :
The number of tigers in the wild has fallen to just over 10,000.
At night, the temperature drops to minus 20 degrees.
▪ plunge /plʌndʒ/ /plummet /ˈplʌmət, ˈplʌmɪt/ to suddenly decrease very quickly and by a very large amount:
Share prices have plummeted 29% in the last four months.
Climate change could cause global temperatures to plummet.
▪ slide if a price or value slides, it gradually decreases in a way that causes problems – used especially in news reports:
The dollar fell in late trading in New York yesterday and slid further this morning.
▪ dwindle /ˈdwɪndl/ to gradually decrease until there is very little left of something, especially numbers or amounts, popularity, or importance:
Support for the theory is dwindling.
▪ taper off /ˈteɪpə $ -ər/ if a number or the amount of an activity that is happening tapers off, it gradually decreases, especially so that it stops completely:
Political violence tapered off after the elections.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012