volume

The volume of a solid object is the three-dimensional concept of how much space it occupies, often quantified numerically. One-dimensional figures (such as lines) and two-dimensional shapes (such as squares) are assigned zero volume in the three-dimensional space.Volumes of straight-edged and circular shapes are calculated using arithmetic formulae. Volumes of other curved shapes are calculated using integral calculus, by approximating the given body with a large amount of small cubes or concentric cylindrical shells, and adding the individual volumes of those shapes. The volume of irregularly shaped objects can be determined by displacement. If an irregularly shaped object floats on water, you will need a heavier object like a rock or metal and attach it on you floating object. This should cause the object to sink. Then, get the volume of the object. Subtract the volume of the attached heavy object and the original findings.
See more at Wikipedia.org...

n. volume, tonnage

n. volume, fullness, fulness

n. tome, volume