PLUMB
plumb
(adjective) exactly vertical; “the tower of Pisa is far out of plumb”
clean, plumb, plum
(adverb) completely; used as intensifiers; “clean forgot the appointment”; “I’m plumb (or plum) tuckered out”
plumb, plum
(adverb) exactly; “fell plumb in the middle of the puddle”
plumb
(adverb) conforming to the direction of a plumb line
plumb
(verb) adjust with a plumb line so as to make vertical
plumb
(verb) examine thoroughly and in great depth
plumb
(verb) measure the depth of something
plumb
(verb) weight with lead
Source: WordNet® 3.1
Etymology 1
Adjective
plumb (comparative more plumb, superlative most plumb)
Truly vertical, as indicated by a plumb line.
(cricket) Describing an LBW where the batsman is hit on the pads directly in front of his wicket and should be given out.
Synonyms
• (truly vertical): perpendicular
Adverb
plumb (not comparable)
In a vertical direction; perpendicularly.
(informal) Squarely, directly; completely.
Noun
plumb (plural plumbs)
A little mass of lead, or the like, attached to a line, and used by builders, etc, to indicate a vertical direction.
(nautical) A weight on the end of a long line, used by sailors to determine the depth of water.
The perpendicular direction or position.
Synonyms
• (construction): plummet, plumb bob (UK), plumb line (US)
Verb
plumb (third-person singular simple present plumbs, present participle plumbing, simple past and past participle plumbed)
To determine the depth, generally of a liquid; to sound.
To attach to a water supply and drain.
(transitive, figurative) To think about or explore in depth, to get to the bottom of, especially to plumb the depths of.
To use a plumb bob as a measuring or aligning tool.
To accurately align vertically or horizontally.
(dated) To seal something with lead.
(intransitive) To work as a plumber.
(rare) To fall or sink like a plummet.
(US, colloquial, figuratively, obsolete) To trace a road or track; to follow it to its end.
(nautical) To position vertically above or below.
Etymology 2
Noun
plumb (plural plumbs)
Obsolete form of plum.
Proper noun
Plumb (plural Plumbs)
A surname.
Statistics
• According to the 2010 United States Census, Plumb is the 7601st most common surname in the United States, belonging to 4372 individuals. Plumb is most common among White (94.05%) individuals.
Source: Wiktionary
Plumb, n. Etym: [F. plomb, L. plumbum lead, a leaden ball or bullet;
cf. Gr. Plummet, Plunge.]
Definition: 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. Plumb bob. See Bob, 4.
– Plumb joint, in sheet-metal work, a lap joint, fastened by
solder.
– Plumb level. See under Level.
– Plumb line. (a) The cord by which a plumb bob is suspended; a
plummet. (b) A line directed to the center of gravity of the earth.
– Plumb rule, a narrow board with a plumb line, used by builders
and carpenters.
Plumb, a.
Definition: Perpendicular; vertical; conforming the direction of a line
attached to a plumb; as, the wall is plumb.
Plumb, adv.
Definition: In a plumb direction; perpendicularly. "Plumb down he falls."
Milton.
Plumb, v. t. [imp. & p. p. Plumbed; p. pr. & vb. n. Plumbing.]
1. To adjust by a plumb line; to cause to be perpendicular; as, to
plumb a building or a wall.
2. 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.
3. To seal with lead; as, to plumb a drainpipe.
4. To supply, as a building, with a system of plumbing.
Source: Webster’s Unabridged Dictionary 1913 Edition