What is another word for plumb line?
Pronunciation: [plˈʌm lˈa͡ɪn] (IPA) 
A plumb line is a tool used for determining verticality by comparing a vertical line to the position of gravity. It is also known as a plummet or a builder's level. Some synonyms for the plumb line include the vertical line, vertical plummet, sector, and the Bob. Carpenter's level, weightline, and heavy cord are also terms that are used interchangeably with the term "plumb line." The tool has various applications across a range of fields, including construction, surveying, and even in the laboratory. It is an essential tool for ensuring that structures are erected accurately both vertically and horizontally.
