expanse

nouns

a wide scope
"the sweep of the plains"
expanse, sweep
the extent of a 2-dimensional surface enclosed within a boundary
"the area of a rectangle"; "it was about 500 square feet in area"
area, expanse, surface area
a wide and open space or area as of surface or land or sky
expanse
is a type of (narrower)
an empty area (usually bounded in some way between things)
"the architect left space in front of the building"; "they stopped at an open space in the jungle"; "the space between his teeth"
space