Volume (4 letters) Dimensional measurement is a term used to describe the process of measuring physical objects in three-dimensional space. The two crossword solutions for this term are 'AREA' and 'VOLUME'. AREA is a two-dimensional measurement that describes the size of a flat surface, while VOLUME is a three-dimensional measurement that describes the amount of space an object occupies. Both AREA and VOLUME are important measurements when it comes to understanding the size and shape of physical objects.