Usually, this area is called common area of some kind.
Which refers to the number of cubic units inside a space figure?
It is called Negative Space.
Volume and it is measured in cubic units.
The internode space. The space between the two leafe nodes. The spaces between leaf veins are called areoles.
The space between planets is known as interplanetary space. It is mostly vacuum but can contain small amounts of particles and gases.
A synapse.
In the United States, a flat is typically referred to as an "apartment." Apartments can vary in size and style, from studio apartments to multi-bedroom units. The term "condo" (short for condominium) is also used for individually owned units within a larger building or complex.
Maybe a condo
A gap.
We call it stoma. the space between grana.
some girls call it a boobiebank
Intergalactic space