plumb

/plʌm/

plumb · name — A surname.

Definition from Wiktionary (CC BY-SA 3.0).

Among words judged in Lexicurio's Arena, plumb ranks #6,825 of 42,994 for Qualifying.

plumb is pronounced /plʌm/.

Etymology

From Middle English plumbe, plumme, from Old French *plombe, from Latin plumba, plural of plumbum.

name

Truly vertical, as indicated by a plumb line.
Describing an LBW where the batsman is hit on the pads directly in front of their wicket and should be given out.

In a vertical direction; perpendicularly.e.g.“Plumb down he drops.” — 1667, John Milton, “(please specify the page number)”, in Paradise Lost. […], London: […] [Samuel Simmons], and are to be sold by Peter Parker […]; [a]nd by Robert Boulter […]; [a]nd Matthias Walker,
Squarely, directly; deeply, completely.e.g.“It hit him plumb in the middle of his face.”

A little mass of lead, or the like, attached to a line, and used by builders, etc., to indicate a vertical direction.
A weight on the end of a long line, used by sailors to determine the depth of water.
The perpendicular direction or position.e.g.“Customers turned away from rickety chairs, stands of drawers that refused to open, or had no handles, lop-sided wardrobes whose doors were out of plumb or whose mirrors were cracked.” — 1950, Norman Lindsay, Dust or Polish?, Sydney: Angus and Robertson, page 61:

To determine the depth, generally of a liquid; to sound.
To attach to a water supply and drain.e.g.“The kitchen sink is now plumbed in / up.”
To think about or explore in depth, to get to the bottom of.e.g.“to plumb the depths of”
To use a plumb bob as a measuring or aligning tool.
To accurately align vertically or horizontally.
To seal something with lead.
To work as a plumber.
To fall or sink like a plummet.
To trace a road or track; to follow it to its end.
To position vertically above or below.

Definitions & examples from Wiktionary (CC BY-SA 3.0).