Set, The Set, SET or SETS may refer to:

Science, technology, and mathematics

Mathematics

Set (mathematics) A set is the mathematical model for a collection of different things; a set contains '' elements'' or ''members'', which can be mathematical objects of any kind: numbers, symbols, points in space, lines, other geometrical shapes, variables, or ...

, a collection of elements *

Category of sets In the mathematical field of category theory, the category of sets, denoted as Set, is the category whose objects are sets. The arrows or morphisms between sets ''A'' and ''B'' are the total functions from ''A'' to ''B'', and the composition o ...

, the category whose objects and morphisms are sets and total functions, respectively

Electronics and computing

Set (abstract data type) In computer science, a set is an abstract data type that can store unique values, without any particular order. It is a computer implementation of the mathematical concept of a finite set. Unlike most other collection types, rather than retrievin ...

, a data type in computer science that is a collection of unique values **

Set (C++) Set, The Set, SET or SETS may refer to: Science, technology, and mathematics Mathematics *Set (mathematics), a collection of elements *Category of sets, the category whose objects and morphisms are sets and total functions, respectively Electro ...

, a set implementation in the C++ Standard Library *

Set (command) This article presents a list of commands used by DOS operating systems, especially as used on x86-based IBM PC compatibles (PCs). Other DOS operating systems are not part of the scope of this list. In DOS, many standard system commands were pro ...

, a command for setting values of environment variables in Unix and Microsoft operating-systems *

Secure Electronic Transaction Secure Electronic Transaction (SET) is a communications protocol standard for securing credit card transactions over networks, specifically, the Internet. SET was not itself a payment system, but rather a set of security protocols and formats that ...

, a standard protocol for securing credit card transactions over insecure networks * Single-electron transistor, a device to amplify currents in nanoelectronics * Single-ended triode, a type of electronic amplifier * Set!, a programming syntax in the scheme programming language

Biology and psychology

* Set (psychology), a set of expectations which shapes perception or thought *Set or sett, a badger's den *Set, a small tuber or bulb used instead of seed, especially: **Potato set **Onion set * SET (gene), gene for a human protein involved in apoptosis, transcription and nucleosome assembly * Single Embryo_transfer#Embryo_number, Embryo Transfer, used in ''in vitro'' fertilization

Physics and chemistry

* A chemical change in an adhesive from unbonded to bonded ** Set, to make/become solid; see Solidification * Stress–energy tensor, a physical quantity in the theory of fields * Single electron transfer

Other uses in science and technology

* Saw set, the process of setting the teeth of a saw so each tooth protrudes to the side of the blade * Scalar expectancy theory, a model of the processes that govern behavior controlled by time * Science, Engineering & Technology, e.g. The Science, Engineering & Technology Student of the Year Awards * Setting (typesetting), the act of typesetting a publication for print or display * Simulated Emergency Test, an amateur radio training exercise * Software Engineer in Test, a Quality Assurance job title in some software companies * Strategic Energy Technologies Plan of the European Union * Suzuki SET, Suzuki Exhaust Tuning of motorcycles

Arts and entertainment

Dance

*Set, the basic square formation in Square dance, square dancing *Set, the basic longwise, square or triangular formation in Scottish country dance, Scottish Country dancing *Set, the basic formation of more than one couple in Scottish, English and Irish Céilidh

Film, television and theatre

*Set (film and TV scenery) *Theatrical scenery *Set construction, construction of scenery for theatrical, movie, television production, and video game production *The Set (film), ''The Set'' (film), a 1970 Australian movie *The Set (TV series), ''The Set'' (TV series), an Australian music television show * Sanlih Entertainment Television, a television channel in Taiwan * Sony Entertainment Television, a Hindi-language television channel

Music

*DJ set or DJ mix, a musical performance by a DJ *Set theory (music), dealing with concepts for categorizing musical objects and describing their relationships *Set (music), a collection of discrete entities, for example pitch sets, duration sets, and timbre sets *Set (Thompson Twins album), ''Set'' (Thompson Twins album) *Set (Alex Chilton album), ''Set'' (Alex Chilton album) *Set list, a list of songs to be played during musical performances

Other arts

*Set (video game), a group of items that adds specific bonuses

Businesses and organizations

* Societatea Pentru Exploatări Tehnice, a Romanian aeronautics company of the 1920s to 1940s * South Eastern Trains, former train operator England * Stock Exchange of Thailand, the national stock exchange of Thailand * SET Index, an index for the Stock Exchange of Thailand * Study of Exceptional Talent, a program for gifted students * Sydney Electric Train Society, an electric train preservation society in Sydney, Australia

Religion

*Set (deity) or Seth, an ancient Egyptian deity *Set or Seth, a Biblical character, a son of Adam and Eve

Sport and games

*Set (darts), a sequence of games *Set (card game) *Set (cards), two or more cards of the same rank *Set (dominoes), the first play in dominoes *Set, a signal used in American football *The set, a pitching position in baseball *Set, a unit of play in tennis *Set, a team's second contact with the ball in volleyball *Set, a group of repetitions in weight training *Three of a kind (poker), a type of poker hand

Other uses

*Set and setting, coined by Timothy Leary to describe the mindset and location of hallucinogenic experiences *Seṭ and aniṭ roots, in Sanskrit grammar *Set (river), a river in northeastern Spain *Selective Employment Tax, a tax in the United Kingdom from 1966 to 1973 *Senate Electoral Tribunal, decides election protests for the Senate of the Philippines *Set, slang term for a subgroup within a Gang#Structure, gang