A weight on a string or thread, so that it hangs straight down, i e perpendicular to the earth's surface and directly in line with the centre of the Earth
a method of reading putts where the putter is hung from the fingers (like a surveyor's plumb line) in front of one's visual field to create a vertical reference Example: "Plumb bobbing is a difficult skill to acquire and is preferred by many players due to the 'feel' that it provides "
A plumb bob is carefully machined, pointed weight that is suspended with a string It is used to indicate a (local) vertical line through the point of suspension
A usually conical metal weight attached to the end of a plumb line. Also called plummet