DNS is the Domain Name System, a network system used to translate names into IP addresses. DNS may also refer to: Science and technology Deviated nasal septum, a displaced part of the nose 3,5-Dinitrosalicylic acid, an aromatic compound Dinalbuphine sebacate, an analgesic Direct numerical simulation, a simulation method in computational fluid dynamics Dragon NaturallySpeaking, speech recognition software "Do not stuff", the omitting of a component on a printed circuit board Other uses Doctor of Nursing Science, an academic research degree Det Nødvendige Seminarium, a teacher training college in Denmark (Democratic People's Alliance), a political party in Bosnia and Herzegovina Dinas Powys railway station (station code), Wales Distressed non-swimmer, a swimming victim type Did not start, in the glossary of motorsport terms DNS (retail company), an electronics retailer in Russia See also Didcot, Newbury and Southampton Railway (DN&SR), an English railway 1891–1923