What is another word for plumb bob?
Pronunciation: [plˈʌm bˈɒb] (IPA) 
Plumb bob, also known as a plummet, is a tool used in construction and engineering to determine verticality. Other synonyms for plumb bob include plummet line, plumb line, plumb weight, and lead line. Some other names for plumb bobs in ancient times are Indian's plummet, Chinese plumb, and Roman plumb. They are often made of brass, steel, or lead and come in various sizes and shapes. Plumb bobs can also have different weights, which are used depending on the sensitivity of the task. Despite varying names and shapes, all of these synonyms point to the same tool used for achieving accuracy in construction and engineering projects.
