Meaning

• A single aspect of a given thing.

• A measure of spatial extent in a particular direction, such as height, width or breadth, or depth.

• A construct whereby objects or individuals can be distinguished.

• The number of independent coordinates needed to specify uniquely the location of a point in a space; also, any of such independent coordinates.

• The number of elements of any basis of a vector space.

• 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."

• Any of the independent ranges of indices in a multidimensional array.

• A universe or plane of existence.

Meaning

• To mark, cut or shape something to specified dimensions.