Set

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

Mathematics

 * Set (mathematics), a collection of elements
 * Category of sets, the category whose objects and morphisms are sets and total functions, respectively

Electronics and computing

 * Set (abstract data type), a data type in computer science that is a collection of unique values
 * Set (C++), a set implementation in the C++ Standard Library
 * Set (command), a command for setting values of environment variables in Unix and Microsoft operating-systems
 * Secure Electronic Transaction, 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, 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
 * Set Catena, a pit chain on Neptune's largest moon Triton

Comics and literature

 * Set (comics), the chief deity of the Stygian people in Robert E. Howard's stories of Conan the Barbarian and the later Marvel comics series

Dance

 * Set, the basic square formation in square dancing
 * Set, the basic longwise, square or triangular formation in 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), a 1970 Australian movie
 * 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 (Alex Chilton album)
 * Set list, a list of songs to be played during musical performances
 * "Set", a song from King Gizzard & the Lizard Wizard's 2023 album The Silver Cord

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
 * Three of a kind (poker), a type of poker hand
 * 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
 * Set (video game), a group of items that adds specific bonuses

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
 * A set, set meal, set menu, or table d'hôte: a meal offered at a fixed price