DN

DN, dN, or dn may refer to:

• Down (disambiguation)
• Dueling Network
• D_n, a Coxeter–Dynkin diagram
• D_n, a Dihedral group
• DN (Dem Niggas) Hip-Hop/Rap Duo from Baltimore, Maryland.
• Dn, abbreviation of "Deacon", one of the three major clerical orders in the Christian churches
• dN, symbol of the decinewton, an SI unit of force
• dn, one of Jacobi's elliptic functions
• DN, Danmarks Naturfredningsforening
• Air Deccan, an airline based in India (IATA code)
• Death Note, a manga/anime/film series
• Denmark, a country in northern Europe (WMO country code DN)
• Descriptive chess notation
• Diametre Nominal, the European equivalent of Nominal Pipe Size.
• Digha Nikaya, a part of the Buddhist Tripitaka
• Digital number, the discrete representation of an analog value sampled by an Analog-to-digital converter
• Dish Network, a satellite television company
• Distinguished Name, an identifier type in the LDAP protocol
• DN the diameter of a rolling element bearing in mm multiplied by its speed in rpm
• Domain name
• Domain Nameserver
• Double negative T cells, also called CD4⁻CD8⁻
• Double nil, a bid in the game of Spades
• Dr. No (novel), a James Bond novel made into a film
• International DN, a kind of iceboat
• Directory number in a phone system
• The Dreadnought class of warships.
• Common abbreviation for the city of Dunedin, New Zealand

In 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
• Dos Navigator

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