Definitions
1.nounA little mass of lead, or the like, attached to a line, and used by builders, etc., to indicate a vertical direction.
2.nounA weight on the end of a long line, used by sailors to determine the depth of water.
3.nounThe perpendicular direction or position.
4.verbTo determine the depth, generally of a liquid; to sound.
5.verbTo attach to a water supply and drain.
6.verbTo think about or explore in depth, to get to the bottom of, especially to plumb the depths of.
7.verbTo use a plumb bob as a measuring or aligning tool.
8.verbTo accurately align vertically or horizontally.
9.verbTo seal something with lead.
10.verbTo work as a plumber.
11.verbTo fall or sink like a plummet.
12.verbTo trace a road or track; to follow it to its end.
13.verbTo position vertically above or below.
14.adjectiveTruly vertical, as indicated by a plumb line.
15.adjectiveDescribing an LBW where the batsman is hit on the pads directly in front of his wicket and should be given out.
16.adverbIn a vertical direction; perpendicularly.
17.adverbSquarely, directly; completely."It hit him plumb in the middle of his face."