Plummet Definition

plŭmĭt
plummeted, plummeting, plummets
noun
plummets
A thing that weighs heavily.
Webster's New World
Webster's New World
Webster's New World

(archaic) A piece of lead attached to a line, used in sounding the depth of water.

Wiktionary
(archaic) A plumb bob or a plumb line.
Wiktionary
Synonyms:
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verb
plummeted, plummeting, plummets
To fall or drop straight downward.
Webster's New World
To fall off or decline precipitously.
Stock prices plummeted.
Webster's New World
Plummet is defined as to fall down quickly and suddenly.
An example of plummet is for a model airplane to quickly plunge from the sky.
YourDictionary
Antonyms:

Other Word Forms of Plummet

Noun

Singular:
plummet
Plural:
plummets

Origin of Plummet

  • From Old English plommet (“ball of lead", "plumb of a bob-line"), recorded since 1382, from Old French plommet or plomet, the diminutive of plom, plum (“lead", "sounding lead"), from Latin plumbum (“lead"). The verb is first recorded in 1626, originally meaning "to fathom, take soundings", from the noun.

    From Wiktionary

  • Middle English plomet from Old French ball of lead diminutive of plom, plomb sounding lead from Latin plumbum

    From American Heritage Dictionary of the English Language, 5th Edition

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