SO

SO (and variations) may refer to:

• So (kana), the romanisation of the Japanese kana そ and ソ
• Superintending Officer in Construction
• Somalia ISO 3166-1 alpha-2 country code
  • .so, the top-level Internet domain of Somalia
• Somali language, (ISO 639)
• Special Olympics, an international organization created to help people with intellectual disabilities develop self-confidence and social skills through sports training and competition
• Sao civilisation or So, an African civilisation that flourished from ca. the 6th century to ca. 15th century
• Sao region or So region, an obsolete name for a region in West Africa that approximately coincides with modern day Cameroon's Far North Region and Nigeria's Adamawa State
• Significant other

In business:

• Sales order, an order received by a business from a customer
• Sosoliso Airlines IATA airline designator
• Superior Aviation IATA airline designator
• Austrian Air Services former IATA airline designator
• Southern Airways former IATA airline designator
• Southern Company stock ticker symbol
• Standard Oil (1870–1911), a predominant integrated oil producing, transporting, refining, and marketing company; dissolved by the US Supreme Court

In entertainment:

• Sierra Oscar, the call sign used by police officers in ITV serial drama The Bill
• Star Ocean, a role-playing game series by Enix

In music:

• So (album), a music album by Peter Gabriel
• So (band), a duo from the 80s formed by two members of The Opposition
• "So" (Static-X song), a song by industrial metal band Static-X
• "Sō (New Love New World)", a song by Japanese singer Masaharu Fukuyama
• "So", a song by War from the album Why Can't We Be Friends?
• Symphony orchestra, a type of orchestra

In military and police:

• SO10, a former Specialist Operations designation for the Metropolitan Police's Crime Operations Group
• SO11 or Specialist Operations - Intelligence, a defunct branch of Scotland Yard
• SO19, the Specialist Firearms Command of Scotland Yard, now known as CO19
• Special ops, another name for special forces

In people:

• So (surname), a Chinese surname
• "s/o", short for "son of", frequently used by those without surnames in India, Sri Lanka, Singapore, Malaysia and elsewhere (where "a/l", the Malay translation, is used) - e.g. Muthusamy s/o Rajendran. "d/o" ("a/p" in Malaysia) is used for daughters

In places:

• Canton of Solothurn, Switzerland
• County Sligo, Republic of Ireland
• So, So Phisai, Bueng Kan Province, Thailand
• So, So Phisai, Nong Khai Province, Thailand

On the Internet:

• Stack Overflow, a question and answer website for computer programming

In science and technology:

• SO, SO alias for SOIC chip "package"
• .so, a filename extension for a shared object (a dynamic library or module) in Unix and GNU/Linux
• Science Olympiad, a primarily American elementary, middle school, or high school team competition that requires knowledge of various science topics and engineering ability
• Service cable/cord, Oil-resistant, a type of power cord
• Shift Out, an ASCII control character in computing
• SO(4), a term used in mathematics, the group of rotations about a fixed point in four-dimensional Euclidean space
• SO(5), a term used in mathematics, the special orthogonal group of degree 5 over the field R of real numbers
• SO(8),a term used in mathematics, the special orthogonal group acting on eight-dimensional Euclidean space
• SO(10) (physics), a term used in particle physics, one of the grand unified theories is based on the SO(10) Lie group
• Special orthogonal group, a subset of an orthogonal group
• StarOffice, a commercial package of office software produced by Sun Microsystems
• Sulfur monoxide, a compound with the chemical formula SO
• Service orientation, a set of design principles in software engineering
• Second-order logic

In sports:

• Shootout in ice hockey
• So Taguchi, a MLB baseball player
• Strikeout, an official abbreviation, but more often abbreviated as K

In other:

• SO, Sony or Sony Ericsson's mobile phones of NTT DoCoMo in Japan
• Stellated octahedron
• S.O. refers to members of the Secular Oratory of the Oratory of St. Philip Neri whilst "C.O." for members of the Congregation
• shell-on shrimp
• So (dairy product), a type of dairy products made in ancient Japan

See also

• Esso, an international trade name used by the Exxon Mobil Corporation and its related companies
• So and so (disambiguation)