Definitionen
1.NounA piece of lead attached to a line, used in sounding the depth of water; a plumb bob or a plumb line.
2.NounHence, any weight.
3.NounA piece of lead formerly used by schoolchildren to rule paper for writing (that is, to mark with rules, with lines).
4.NounA violent or dramatic fall.
5.NounA decline; a fall; a drop.
6.VerbTo drop swiftly, in a direct manner; to fall quickly."After its ascent, the arrow plummeted to earth."