plumb
adjective
°Describing an LBW where the batsman is hit on the pads directly in front of his wicket and should be given out.
verb
°In a vertical direction.
noun
°A little mass of lead, or the like, attached to a line, and used by builders, etc., to indicate a vertical direction; a plummet; a plumb bob (UK); a plumb line (US).
°A weight on the end of a long line, used by sailors to determine the depth of water.