Cast Deployment System, a term in DisneySpeak indicating a computerized "clocking in" program utilized by the Walt Disney Company to record cast member work times.

Controlled/Dangerous Substance, as defined by the Controlled Substances Act.

Content delivery system is a computer-based system, often web-based for collecting and coordinating electronic documents and communications

Child-directed speech - see Baby talk.

Certificate of Deposit

Centro Democrático e Social/Partido Popular, a Portuguese political party

Centro Democrático y Social, a former Spanish political party

Convention Démocratique et Sociale-Rahama, a Nigerian political party

Clinical Decision Support.

A CD single contains only a single or a few tracks.

Social Democratic Convention, a Malian political party

The Canadian Depository for Securities, Canada's national securities depository, clearing and settlement hub.

Cinema Digital Sound, short-lived theatrical surround sound system of the early 1990s.

Centre de Données astronomiques de Strasbourg, a French astronomical data center

in Avionics, CDS means Cockpit display system, which is another term for Glass cockpit.

Cadence Design Systems, an American company producing Electronic Design Automation software.

Coding sequence, a term used in molecular biology for a part of a DNA sequence that contains a gene (and thus "codes" for an RNA which can: 1) be translated into a protein, or 2) directly fulfill a specific function, such as rRNA or tRNA).

Cadmium Sulfide photoresistor, an optoelectronic component.

Collecting duct system of kidney

Credit default swap, a type of credit derivative

The Chief of the Defence Staff (United Kingdom), the professional head of the military in the United Kingdom

The Chief of the Defence Staff (Canada), the professional head of the military in Canada

The Counterfeit Deterrence System developed by the Central Bank Counterfeit Deterrence Group -- compare EURion constellation

Centre des démocrates sociaux, a French political party, which became Force démocrate in 1995

Career Depression Syndrome, dissatisfaction in one's career. See also burnout.

Carolina Day School, a private school in Asheville,NC.

Centre for Development Studies, a development research institute at Thiruvananthapuram (Trivandrum), Kerala, India, established by the noted economist Professor K. N. Raj.

Combined Defence Services Examination Conducted by UPSC for induction into the Indian Armed Forces.

Commercial Data Systems, Ltd., a software publisher and technology company based in Emerald Park, Saskatchewan.

Condensed Distillers Solubles, a cereal byproduct of the distillation process.

Conference of Drama Schools, comprising the 22 leading drama schools in England.