What is the meaning of Plumb?

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.

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.

Squarely, directly; deeply, completely.

To determine the depth, generally of a liquid; to sound.

To attach to a water supply and drain.

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.

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.

Obsolete form of plum (the fruit).

lead (metal)

bullet

lead (metal)

lead (chemical element)

bullet, projectile

pencil

Source: wiktionary.org