* Cubic Centimeter (cm³) : This is a measure of volume. It represents the space occupied by a cube with sides of 1 centimeter each.

* Millimeter (mm): This is a measure of length. It's one-thousandth of a meter.

To relate them:

* 1 centimeter (cm) = 10 millimeters (mm)

* 1 cubic centimeter (cm³) is equal to 1000 cubic millimeters (mm³)