For lines which are vertical, a weight called a plumb-bob must be attached to one end of the string.
And at last he was dangling at the end of the rope like a plumb-bob.
With a tape line, gimlet, and plumb-bob, a mechanic is fully equipped with tools to get his measurements.
Kear the end suspend a plumb-bob, and have it swing in a bucket of water.
The work was well advanced, Ñor Juan with his mile and plumb-bob coming and going among the numerous laborers.