DN

Look up dN in Wiktionary, the free dictionary.

DN, dN, or dn may refer to:

Science, technology, and mathematics

Computing and telecommunications

• Digital number, the discrete representation of an analog value sampled by an analog-to-digital converter
• Directory number in a phone system
• Distinguished Name, an identifier type in the LDAP protocol
• Domain name, an identification string used within the Internet
• Domain Nameserver
• DOS Navigator, a DOS file manager

Mathematics

• dn, one of Jacobi's elliptic functions
• D_n, a Coxeter–Dynkin diagram
• D_n, a dihedral group

Other uses in science and technology

• Decinewton (symbol dN), an SI unit of force
• Diametre Nominal, the European equivalent of Nominal Pipe Size
• Diameter of a rolling element bearing in mm multiplied by its speed in rpm
• Deductive-nomological model, a philosophical model for scientific explanation
• Double negative T cells, also called CD4⁻CD8⁻

Entertainment

• Double nil, a bid in the game of Spades
• Descriptive chess notation

Journalism

• The Ball State Daily News, the student newspaper of Ball State University in Muncie, Indiana
• Dagens Næringsliv, a Norwegian newspaper
• Dagens Nyheter, a Swedish newspaper
• Democracy Now!, the flagship program for the Pacifica Radio network
• Diário de Notícias, a Portuguese newspaper

Places

• Denmark (WMO country code DN)
• DN postcode area for Doncaster and surrounding areas, UK
• Dunedin, New Zealand (commonly abbreviated DN)

Other uses

• Down (disambiguation)
• Digha Nikaya, a part of the Buddhist Tripitaka
• International DN, a kind of iceboat
• Dreadnought, a class of warships