{{wiktionary|SSR}} '''SSR''' may refer to:
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==Businesses, entertainment and products== * Solid State Records, a Christian record label * Chevrolet SSR, a Chevrolet small truck * Disney's Saratoga Springs Resort & Spa * Small Screen Rendering, a technology part of Opera Mini * ''Sonic and the Secret Rings'', a 2007 platform video game * ''Stephen's Sausage Roll'', a 2016 puzzle video game * Sirius Satellite Radio, a satellite radio service operating in North America * Strategic Scientific Reserve, a fictional organization in Marvel Comics and precursor to the fictional organization S.H.I.E.L.D. * SSR Wheels, a Japanese wheel manufacturer
==Geographical locations== * Soviet Socialist Republic, see Republics of the Soviet Union * Slovak Soviet Republic (1919), a very short-lived communist state in south and eastern Slovakia * Slovak Socialist Republic, the official name of Slovakia from 1969 to 1990 *Second Spanish Republic
==Railways== * Sabah State Railway, a railway in Malaysia * Southern Shorthaul Railroad, an Australian provider of motive power hauling trains in New South Wales and Victoria, and freight train operator * Southern Suburbs Railway, a New MetroRail project in Perth, Western Australia * Springfield Street Railway, a former interurban street railway in Springfield, Massachusetts * Strategic steam reserve, a collection of steam locomotives retained for use in a national emergency * Sub-surface Railways, cut-and-cover railway lines forming part of the London Underground; also called Sub-surface Lines
==Science and technology== * Scalable Sample Rate, used in MPEG-4 Part 3 and MPEG-2 Part 7 * Scalable Source Routing, a routing algorithm for unstructured networks * Screen Space Reflections, in computer graphics reflection * Secondary surveillance radar, a radar system used in air traffic control * Simple Sequence Repeat, repeating sequences of 2-6 base pairs of DNA * Site-specific recombination, a type of genetic recombination in which DNA strand exchange takes place between segments possessing only a limited degree of sequence homology * Slope stability radar, the application for the monitoring of slope stability at open-cut mines * Solid-state relay, an electronic switching device in which a small control signal controls a larger load current or voltage * Sources, sinks and reservoirs, for greenhouse gases * Stable salt reactor, a proposed low-cost nuclear reactor design * Sum of squared residuals * Sum of squares due to regression * Server-side rendering, using a web server to deliver a customized HTML file for a user (client) * State-space representation, a particular type of a mathematical model of a physical system, used in control engineering and in satellite navigation
== People == * S. S. Rajamouli (born 1973), Indian film director * S. S. Rajendran (1928–2014), Indian actor * Sushant Singh Rajput (1986–2020), Indian actor * Singeetam Srinivasa Rao (born 1931), Indian film director
==Other uses== * Swiss Broadcasting Corporation (SRG SSR) * Sainik School, Rewa, a senior secondary school in India * Security sector reform, a process to amend a security sector towards good governance * The South Saskatchewan Regiment, a Canadian infantry regiment * Special Support and Reconnaissance Company, a Danish military unit * ''The Structure of Scientific Revolutions'', a 1962 book by Thomas Kuhn * The obsolete United States Navy hull classification symbol for a diesel-electric radar picket submarine * Sustained silent reading, a form of school-based recreational reading * Self Supporting Run-flat tires, a type of run-flat tire * Svenska Scoutrådet, the national Scouting and Guiding federation of Sweden * In air travel passenger name records, a Special Service Request *Same-sex relationship * Short-sale restriction, a modified uptick rule instituted by the U.S. Securities and Exchange Commission (SEC) in 2010 *Somali State Resistance, a rebel group in Ethiopia
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