A child playing with a model airplane.
- The definition of a plummet is something that weighs something else down.
An example of plummet is a weight tied to a piece of material.
- 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.
- plumb bob
- plumb (noun)
- a thing that weighs heavily
Origin of plummetMiddle English plomet from Middle French plommet, diminutive of plomb: see plumb
- to fall or drop straight downward
- to fall off or decline precipitously: stock prices plummeted
- See plumb bob.
- Something that weighs down or oppresses; a burden.
intransitive verbplum·met·ed, plum·met·ing, plum·mets
- To fall straight down; plunge.
- To decline suddenly and steeply: Stock prices plummeted.
Origin of plummetMiddle English plomet from Old French ball of lead diminutive of plom, plomb sounding lead from Latin plumbum
- (archaic) A piece of lead attached to a line, used in sounding the depth of water.
- (archaic) A plumb bob or a plumb line.
- (archaic) Hence, any weight.
- (archaic) A piece of lead formerly used by school children to rule paper for writing
- a plummet line, a line with a plummet; a sounding line.
- Violent or dramatic fall
- (figuratively) decline; fall; drop
(third-person singular simple present plummets, present participle plummeting or plummetting, simple past and past participle plummeted or plummetted)
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.