bob - a hanging weight, especially a metal ball on a string

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

measure, quantify - express as a number or measure or quantity; "Can you quantify your results?"

burden, burthen, weight, weight down - weight down with a load

explore - examine minutely

adjust, correct, set - alter or regulate so as to achieve accuracy or conform to a standard; "Adjust the clock, please"; "correct the alignment of the front wheels"

vertical, perpendicular - at right angles to the plane of the horizon or a base line; "a vertical camera angle"; "the monument consists of two vertical pillars supporting a horizontal slab"; "measure the perpendicular height"

jargon, lingo, patois, argot, vernacular, slang, cant - a characteristic language of a particular group (as among thieves); "they don't speak our lingo"

colloquialism - a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech