S: (n) area, expanse, surface area (the extent of a 2-dimensional surface enclosed within a boundary) "the area of a rectangle"; "it was about 500 square feet in area"
S: (n) extent (the distance or area or volume over which something extends) "the vast extent of the desert"; "an orchard of considerable extent"
S: (n) 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"
S: (n) property (a basic or essential attribute shared by all members of a class) "a study of the physical properties of atomic particles"
S: (n) attribute (an abstraction belonging to or characteristic of an entity)