DOS Compact discs (CDs) CD single (CDS), a music single in the form of a standard size compact disc Cockpit display system Cross-domain solution, processes that transfer data between security domains Cinema Digital Sound, a multi-channel surround sound format used for theatrical films in the early 1990s Other uses Common Data Set Community day school, a school system used in the state of California, US Coulsdon South railway station, London, England (National Rail station code) Country Day School movement Child-directed speech, or baby talk Condensed distillers solubles, also referred to as distillers grains, a cereal byproduct of the distillation process Container delivery system, a system used for airdrops Controlled/dangerous substance, as defined by the Controlled Substances Act Combined Defence Services Examination, abbreviated as CDS, Indian military examination Certified Director of Safety (Designation from NATMI - the North American Transportation Management Institute in conjunction with the University of Central Florida) Customs Declaration Service, a UK customs management system and planned successor of CHIEF. See also Clinical decision support (CDSS), software to assist clinical diagnostic and therapeutic decision-making CD (disambiguation), for the singular of CDS