Definition of plummet in English:

plummet

Line breaks: plum|met
Pronunciation: /ˈplʌmɪt
 
/

verb (plummets, plummeting, plummeted)

[no object]
1Fall or drop straight down at high speed: a climber was killed when he plummeted 300 feet down an icy gully
More example sentences
  • If he fell, he would plummet 60 feet straight down onto the jumble of boulders strewn at the base.
  • Without warning, he dropped straight down, plummeting toward the ground far below.
  • Requiring nerves of steel, speed sky diving involves plummeting from a plane at more than 300 mph.
Synonyms
plunge, fall headlong, hurtle, nosedive, dive, drop, crash, descend rapidly
1.1Decrease rapidly in value or amount: hardware sales plummeted
More example sentences
  • The sale was abruptly halted, the value of the painting plummeted and the they decided to sue.
  • She said she knew of people whose property values had plummeted, and others who had been deterred from moving to the area as a result of the threat.
  • She said the value of houses has plummeted so low landlords are able to buy property at rock bottom cost and then rent them out for profit.
Synonyms
fall steeply/sharply, plunge, tumble, drop/decrease rapidly, go down, sink, slump
informal crash, nosedive, take a nosedive

noun

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1A steep and rapid fall or drop: the bird has a circular display flight followed by an earthward plummet
More example sentences
  • His body was pushed back in the seat by the fall, the plummet sending his adrenaline running through his veins.
  • Somehow he has turned our headlong plummet into the sign of hope for the future.
  • The building began it's plummet, falling forward.
2A plumb or plumb line.
More example sentences
  • With a heavy plummet, I plumb the depth and set the float so that about half the float's length is protruding above the surface.
  • All we are going to do is put a plummet on and lower it in, tight to the margins, turn sideways to drop it right in at the edge of the vegetation.

Origin

late Middle English (as a noun): from Old French plommet 'small sounding lead', diminutive of plomb 'lead'. The current verb sense dates from the 1930s.

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