plumb Meaning, Definition & Usage

noun the metal bob of a plumb line
plummet; plumb bob.
verb measure the depth of something
verb weight with lead
verb examine thoroughly and in great depth
verb adjust with a plumb line so as to make vertical
adjective satellite exactly vertical
- the tower of Pisa is far out of plumb
adverb completely; used as intensifiers
plum; clean.
- clean forgot the appointment
- I'm plumb (or plum) tuckered out
adverb conforming to the direction of a plumb line
adverb exactly
plum.
- fell plumb in the middle of the puddle

F. plomb, L. plumbum lead, a leaden ball or bullet; cf. Gr. , , . Cf. Plummet, Plunge.

A little mass or weight of lead, or the like, attached to a line, and used by builders, etc., to indicate a vertical direction; a plummet; a plumb bob. See Plumb line, below.

Perpendicular; vertical; conforming the direction of a line attached to a plumb; as, the wall is plumb.

imperfect & past participle Plumbed ; present participle & verbal noun Plumbing

To adjust by a plumb line; to cause to be perpendicular; as, to plumb a building or a wall.
To sound with a plumb or plummet, as the depth of water; hence, to examine by test; to ascertain the depth, quality, dimension, etc.; to sound; to fathom; to test.
He did not attempt to plumb his intellect. Ld. Lytton.
To seal with lead; as, to plumb a drainpipe.
To supply, as a building, with a system of plumbing.