the property of relative size or extent (whether large or small)
a number assigned to the ratio of two quantities; two quantities are of the same order of magnitude if one is less than 10 times as large as the other; the number of magnitudes that the quantities differ is specified to within a power of 10
Extent of dimensions; size;
That which has one or more of the three dimensions, length, breadth, and thickness.
Anything of which greater or less can be predicated, as time, weight, force, and the like.
Greatness, in reference to influence or effect; importance; as, an affair of magnitude.