IPA: /ˈkjuːbɪdʒ/
KK: /ˈkjuːbɪdʒ/
The amount of space inside a three-dimensional object, measured in cubic units.
The cubage of the box was calculated to determine how much it could hold.
Cubage is formed from "cube" (from Latin "cubus", meaning a three-dimensional geometric figure with equal sides) and "-age" (a suffix used to form nouns indicating a state or condition). The word "cubage" refers to the measurement of volume in cubic units, relating to the concept of a cube.
Think of a 'cube' as a three-dimensional shape, and remember that 'cubage' refers to measuring the volume of that shape.