Definitions of dimension:

• noun:   the magnitude of something in a particular direction (especially length or width or height)
• noun:   one of three cartesian coordinates that determine a position in space
• noun:   magnitude or extent
• noun:   a construct whereby objects or individuals can be distinguished
• verb:   indicate the dimensions on

  Example: "These techniques permit us to dimension the human heart"

• verb:   shape or form to required dimensions