noun \ˈpləm\

Definition of PLUMB

:  a lead weight attached to a line and used to indicate a vertical direction
out of plumb or off plumb
:  out of vertical or true

Origin of PLUMB

Middle English, from Anglo-French plum, plomb, from Latin plumbum lead
First Known Use: 14th century

Other Civil Engineering Terms

asphalt, ballast, barrage, cantilever, infrastructure, sluice

Rhymes with PLUMB



: exactly straight down or up : in a perfectly vertical position

: to a complete degree

Full Definition of PLUMB

:  straight down or up :  vertically
chiefly dialect :  to a complete degree :  absolutely <‘you're plumb crazy’, she remarked, with easy candor — Harper's Weekly>
:  in a direct manner :  exactly; also :  without interval of time :  immediately

Examples of PLUMB

  1. He set the board plumb.
  2. I plumb forgot about the party.

First Known Use of PLUMB

15th century



: to examine (something) in a careful and complete way in order to understand it

: to experience or reach (something)

: to install pipes for sinks, toilets, etc., in (a building or room)

Full Definition of PLUMB

transitive verb
:  to weight with lead
a :  to measure the depth of with a plumb
b :  to examine minutely and critically <plumbing the book's complexities>
:  to adjust or test by a plumb line
:  to seal with lead
[back-formation from plumber] :  to supply with or install as plumbing
intransitive verb
:  to work as a plumber

Examples of PLUMB

  1. The book plumbs the complexities of human relationships.
  2. a scientist who spent her life plumbing the minds of criminals
  3. The play plumbs the depths of human nature.
  4. The plumber is almost finished plumbing the apartment.
  5. The new house has been wired and plumbed.
  6. All the bathroom fixtures have been plumbed.

First Known Use of PLUMB

15th century

Related to PLUMB



: exactly vertical : standing perfectly straight and not leaning in any way

Full Definition of PLUMB

:  exactly vertical or true

Examples of PLUMB

  1. The carpenter made sure that the wall was plumb.
  2. <a horror movie that's plumb trash and further evidence of the deterioration of popular culture>

First Known Use of PLUMB

15th century


Next Word in the Dictionary: plumbablePrevious Word in the Dictionary: plumatellaAll Words Near: plumb
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