CD (disambiguation)

CD, C/D, Cd or cd may stand for:

* Compact Disc
* CD-ROM
* Certificate of deposit (time deposit)
* CD represents 400 in Roman numerals

In science and computers

* .cd, the Internet domain of the Democratic Republic of the Congo
* Cadmium (chemical element Cd)
* Candela (cd, a unit of light intensity)
* Circular dichroism, a form of spectroscopy
* Drag coefficient (C_d)
* Cluster of differentiation in cell surface markers
* Cordoba Durchmusterung, a star catalogue of the southern sky; stars are listed in the catalog by numbers prefixed with "CD"
* Giant diffuse galaxy, also known as a cD galaxy
* In psychiatry, chemical dependency
* cd, a shell command to change directory

In codes

* Chad (FIPS 10-4 country code)
* Democratic Republic of the Congo (ISO 3166 country code)
* Alliance Air (airline code CD)
* -CD, the North American call sign suffix for Class A low-power television stations operating with digital signals

In non-English abbreviations

* České Dráhy (Czech Railways)
* Cash dispenser, in Japan
* Cúcuta Deportivo, an identifier for a football club in Colombia
* Cordoba Durchmusterung
* Corps Diplomatique

In sports

* Compulsory dance, the first part of an ice dancing competition

Miscellanea

* Christine Day of Australia. Also "Chris" and on occasions "Bloss" or "Pixie"
* Centre Democrats of Denmark
* Centre Democrats (Netherlands) of the Netherlands
* Cemetery Dance magazine is abbreviated CD
* Cemetery Dance Publications is abbreviated CD
* "Chinese Democracy (album)", upcoming sixth studio album by Guns N' Roses
* "CD", a song by the British progressive rock band T2, added as a bonus to the remastered edition of their 1970 album "It'll All Work Out In Boomland"
* Canadian Forces Decoration (Canadian decoration post-nominal letters)
* "Celebrity Deathmatch"
* Chart datum, in nautical charts
* Christian Dior
* Damascus Document, a fragment from the Dead Sea Scrolls
* "Church Dogmatics", the theologian Karl Barth's magnum opus
* Convertible Debenture
* Civil defense, particularly United States Civil Defense
* Civil disobedience
* Cluster of differentiation (e.g. CD4 or CD8 lymphocytes)
* The CoDominium, a fictional universe in a future history (now alternate history) setting for the books in the CoDominium Series by Jerry Pournelle.
* Collision detection, an algorithm or a set of algorithms, used in video games and simulations, designed to detect the intersection between two entities.
* Columbus Dispatch
* Community of Democracies
* Companion dog title
* Conduct Disorder
* Conference on Disarmament, organized by the United Nations
* Congressional district
* Collector/distributor
* Conservation Dependent (cd), IUCN Red List subcategory
* Controlled Drug
* Critical Dimension in optics and physics
* Crossdresser
* Crohn's disease
* Cheating-Death, a "Counter-Strike" cheat detector.
* A 1960s Panhard race car designed by Charles Deutsch
* Cooldown, in some video games such as "World of Warcraft".
* Geely CD, a coupe automobile from Chinese manufacturer, Geely Automobile

ee also

* Kia cee'd
* seedy