"CAD" stands for computer-aided design, which includes computer tools used by architects, engineers and other design professionals. Software is used in the process, as well as occasional special-purpose hardware. Referring to the same process, "CAD" also stands for computer-assisted drafting.
According to References.com, CAD is used in conjunction with computer-aided manufacturing during product development. In terms of computers and technology, "CAD" also can stand for computer-aided detection, computer-aided dispatch, computer-aided drawing and Control-Alt-Delete. Outside of the computer world, "CAD" can also stand for county appraisal district, Canadian dollar, central appraisal district, coronary artery Disease, control and display, cost analysis division, custom application development or consumer affairs division.