dimension

1. A single aspect of a given thing.
2. A measure of spatial extent in a particular direction, such as height, width or breadth, or depth.
3. A construct whereby objects or individuals can be distinguished.
4. The number of independent coordinates needed to specify uniquely the location of a point in a space; also, any of such independent coordinates.
5. The number of elements of any basis of a vector space.
6. One of the physical properties that are regarded as fundamental measures of a physical quantity, such as mass, length and time.

   The dimension of velocity is length divided by time.

7. Any of the independent ranges of indices in a multidimensional array.
8. A universe or plane of existence.

verb

To mark, cut or shape something to specified dimensions.