extent -
the distance or area or volume over which something extends; "the vast extent of the desert"; "an orchard of considerable extent"
magnitude the property of relative size or extent (whether large or small); "they tried to predict the magnitude of the explosion"; "about the magnitude of a small pea"
coverage the extent to which something is covered; "the dictionary's coverage of standard English is excellent"
frontage the extent of land abutting on a street or water
boundary,
bound,
limit the line or plane indicating the limit or extent of something
length a section of something that is long and narrow; "a length of timber"; "a length of tubing"
extent -
the point or degree to which something extends; "the extent of the damage"; "the full extent of the law"; "to a certain extent she was right"
degree,
level,
stage,
point a position on a scale of intensity or amount or quality; "a moderate grade of intelligence"; "a high level of care is required"; "it is all a matter of degree"