Cd

CD may stand for:

• compact disc
• Canadian Forces Decoration
• cash dispenser (at least used in Japan)
• CD LPMud Driver
• Centrum-Demokraterne (Centre Democrats of Denmark)
• certificate of deposit
• České dráhy (Czech Railways)
• Chad (NATO country code)
• Chalmers Datorförening (computer club of the Chalmers University of Technology)
• a 1960s Panhard race car designed by Charles Deutsch
• circular dichroism
• civil defense
• cluster of differentiation (e.g. CD4 or CD8 lymphocytes)
• Companion Dog Title
• Conference on Disarmament, organized by the United Nations
• Congo, Democratic Republic of the (ISO 3166–1 alpha-2 country code)
• congressional district
• Corps Diplomatique
• crossdresser

C_d may stand for:

• drag coefficient

Cd may stand for:

• Cadmium (symbol for the chemical element)

cd may stand for:

• candela (symbol of the SI unit of light intensity)
• .cd is the Internet top-level domain of the Democratic Republic of the Congo
• a UNIX and DOS command, see chdir