Definify.com
Webster 1913 Edition
Plummet
1.
A piece of lead attached to a line, used in sounding the depth of water.
I’ll sink him deeper than e'er
plummet
sounded. Shakespeare
2.
A plumb bob or a plumb line. See under
Plumb
, Noun.
3.
Hence, any weight.
4.
A piece of lead formerly used by school children to rule paper for writing.
Plummet line
, a line with a plummet; a sounding line.
Webster 1828 Edition
Plummet
PLUM'MET
,Noun.
1.
A long piece of lead attached to a line, used in sounding the depth of water.2.
An instrument used by carpenters, masons, &c. in adjusting erections to a perpendicular line, and with a square, to determine a horizontal line. It consists of a piece of lead fastened to a line.3.
Any weight.4.
A piece of lead used by school boys to rule their paper for writing.