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plumb

plumb

3 6.0
Exactly vertical and standing straight
  • adjective
  • /plʌm/
translation icon : vertical
  • The walls were not Plumb, so I had to add MDF panels to create the sides of the wardrobe.
  • perfectly plumb
  • plumb and square
  • plumb and level

Examples

  • These walls will receive several layers of base plaster to flesh them out and make them smoother and flatter and more plumb.

    Blog text (20)
  • To ensure accuracy, the carpenter double-checked that the door frame was plumb before securing it.

  • In my line of work, it's plumb necessary.

  • And we're plumb center, right here.

  • The architect insisted that all columns must be plumb for the building's structural integrity.

  • After adjusting the pipe, the technician confirmed it was plumb using a level.

Synonyms

vertical
vsplumb
100 2.7

Standing straight up and down at right angles to the horizon

is more about total exactness in being perfectly straight up
upright
vsplumb
44 2.7

Standing straight up and not leaning

is about exact measured straightness not only ordinary standing posture

Antonyms

95 2.8

Parallel to the horizon, like a flat table top

Compounds

plumb line
  • Specialized
1 5.3

A string with a metal weight that shows a straight up-and-down line

7.0

A heavy pointed weight on a string used to show a vertical line

plumb level
  • Specialized
7.2

A tool with a hanging string and a bubble level to check vertical or horizontal lines

plumb rule
  • Specialized
7.9

A straight narrow board with a hanging weight used to check if a wall is perfectly vertical

How Vertical

plumb
3 6.0
upright
44 2.7
tilted
2.5
slanted
3.9
horizontal
95 2.8

Surface Forms

plumb positive

Etymology

Plumb meaning 'exactly vertical' comes from the plumb line with a plumbum 'lead' weight that hangs perfectly straight down. So when a post is 'plumb' it means it is exactly upright.