A 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. (geometry) The number of independent coordinates needed to specify uniquely the location of a point in a space; also, any of such independent coordinates.
5. (linear algebra) The number of elements of any basis of a vector space.
6. (physics) One of the physical properties that are regarded as fundamental measures of a physical quantity, such as mass, length and time.
7. (computing) Any of the independent ranges of indices in a multidimensional array.
8. (science fiction, fantasy) A universe or plane of existence.

Synonyms

• (single aspect of a thing): aspect
• (measure of spatial extent): magnitude, proportion, size, scope
• (construct whereby objects or individuals can be distinguished): attribute, property