a measure: the measured size of something, or the standard by which size is measured.
This is the noun built from the ordinary verb for measuring, and almost everywhere it simply means a measure: how long, wide, or tall a thing turns out to be when you take its dimensions. It is the word the builders and surveyors of the Bible reach for. The tent of meeting, Solomon's temple and its furnishings, the great stones of the foundation, and the rebuilt city walls of Nehemiah are all described by their measures, and Ezekiel's long temple vision is one sustained exercise in recording them as a man with a line walks the building and calls out figure after figure.
From the size of an object the word reaches in two natural directions. It can name the fixed standard you measure by rather than the result, so that cheating with a false measure of length is condemned alongside crooked weights and scales. And it can apply that idea of measured extent to things that are not buildings at all: the wind given its weight and the waters their measured limit at creation, or a person asking God to let him know the measure of his days, the short span allotted to a human life.
The same word also describes the measure of a person's body, their height or build. A man of unusual size is literally a man of measure, and so the giant warriors and the tall men of distant nations are spoken of this way. It is the one English idea, taking the dimensions of a thing, stretched naturally from a wall to a lifetime to a human frame.