Meaning of plummet

plum•met

Pronunciation: (plum'it), [key]
— n.
  1. Also calleda piece of lead or some other weight attached to a line, used for determining perpendicularity, for sounding, etc.; the bob of a plumb line.
  2. something that weighs down or depresses.
—v.i.
  1. to plunge.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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