Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun plumb_line

1 sense of plumb line

Sense 1
plumb line, perpendicular -- (a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point)
       => cord -- (a line made of twisted fibers or threads; "the bundle was tied with a cord")