Source

• Historical source • Source (intelligence) or sub source, typically a confidential provider of non open-source intelligence • Source (journalism), a person, publication, publishing institute or other record or document that gives information • Source document, a document in which data collected for a clinical trial is first recorded • Source text, in research (especially in the humanities), a source of information referred to by citation • Primary source, a first-hand written evidence of history made at the time of the event by someone who was present • Secondary source, a written account of history based upon the evidence from primary sources • Tertiary source, a compilation based upon primary and secondary sources • Sources (website), a directory of expert contacts and media spokespersons • Open source, a philosophy of dissemination of intellectual products ==Law==

• Sources of international law, the materials and processes out of which the rules and principles regulating the international community are developed • Sources of law, the materials and processes out of which law is developed == Mathematics and physics ==

• Sources and sinks a general mathematical analogy used in science • Source of a morphism • Source, a point where the divergence of a vector field is positive • Source of a representation, in finite group theory • Source, a terminal in a field-effect transistor • Current source, an electrical or electronic device that delivers or absorbs electric current • Energy sources, substances or processes with high concentrations of energy • Ion source, a device that creates atomic and molecular ions • Light source, an object emitting light • Point source, a single identifiable localised source of something • Radioactive source, a known quantity of a radionuclide which emits ionizing radiation • Sound source, an object emitting sound • Voltage source, any device or system that produces an electromotive force between its terminals ==Computing and technology==

• Source (command), a UNIX command to execute commands from a file • Communication source, objects which encode message data and transmit the information • Source code, a file containing code for software written in a programming language • Source theory, any process that generates successive messages in information theory • Source (programming language), a family of sublanguages of JavaScript to support Structure and Interpretation of Computer Programs, JavaScript Adaptation ==Earth and life sciences==

• Inflow (hydrology), the source of the water in a lake • Source (hydrology), the original point from which a river or stream flows • Source rocks, rocks that have generated, or are capable of generating hydrocarbons • Source tissue, plant tissue serving as a source of nutrients; for example see Somatic embryogenesis ==Art and entertainment==

Fictional entities • Source (comics), a sentient entity who provides advice to the New Gods in the DC Multiverse Games • Source (game engine), a game engine developed by Valve • Source 2, the successor to Source • Counter-Strike: Source, a 2004 complete remake of Counter-Strike using the Source game engine • Day of Defeat: Source, a 2005 complete remake of Day of Defeat using the Source game engine Music • Source (album), a 2020 album by Nubya Garcia, or the title song • Source, a 2003 album by the Duskfall • "Source", a song by Tycho from his 2016 album Epoch Periodicals • Source (lifestyle magazine), a bi-monthly magazine published by the John Lewis Partnership • Source (photography magazine), a quarterly photography magazine • Sources: A Journal of Jewish Ideas, published by the Shalom Hartman Institute Visual arts • Source (1/3), public artwork by U.S. artist Tony Smith ==Organizations==

• Source (UNSW), a community service provider that used to operate at the University of New South Wales in Sydney, Australia • Source Family (1922–1975), a commune outside of 1970's Hollywood • Source Vagabond Systems, an Israeli manufacturer using the brand "SOURCE" ==Places==

• natural spring • headwaters • Les Sources (), Estrie, Quebec, Canada; a regional county municipality • Des Sources station (), Montreal, Quebec, Canada; a light rail station • Boulevard Des Sources (), Montreal, Quebec, Canada; a large street ==Other uses==

• Operation Source, a series of attacks on German warships in 1943 • Absolute (philosophy), or the source, as the absolute principle of being ==See also==