Loop or LOOP may refer to:

Brands and enterprises

Loop (mobile) Loop or LOOP may refer to: Brands and enterprises * Loop (mobile), a Bulgarian virtual network operator and co-founder of Loop Live * Loop, clothing, a company founded by Carlos Vasquez in the 1990s and worn by Digable Planets * Loop Mobile, ...

, a Bulgarian virtual network operator and co-founder of

Loop Live The Loop Live festival is a music festival in Bulgaria. Since 2007 it is held once a year on Prince Alexander of Battenberg Square in the capital city Sofia. It's a free music event and always includes a host of new and popular artists. The fe ...

* Loop, clothing, a company founded by Carlos Vasquez in the 1990s and worn by

Digable Planets Digable Planets () is an American hip hop trio formed in 1987. The trio is composed of rappers Ishmael "Butterfly" Butler, Mariana "Ladybug Mecca" Vieira, and Craig "Doodlebug" Irving. The group is notable for their contributions to the subgenre ...

Loop Mobile Loop or LOOP may refer to: Brands and enterprises * Loop (mobile), a Bulgarian virtual network operator and co-founder of Loop Live * Loop, clothing, a company founded by Carlos Vasquez in the 1990s and worn by Digable Planets * Loop Mobile, a ...

, an Indian mobile phone operator * Loop, a reusable container program announced in 2019 by TerraCycle

Geography

* Loop, Germany, a municipality in Schleswig-Holstein * Loop (Texarkana), a roadway loop around Texarkana, Arkansas, United States *

Loop, Blair County, Pennsylvania Loop is an unincorporated community and census-designated place (CDP) in Blair County, Pennsylvania, United States. It was first listed as a CDP prior to the 2020 census. The CDP is in south-central Blair County, in the western part of Franksto ...

, United States * Loop, Indiana County, Pennsylvania, United States * Loop, West Virginia, United States *

Loop 101 Arizona State Route 101 (SR 101) or Loop 101 is a semi-beltway looping around the Phoenix Metropolitan Area in central Arizona. It connects several suburbs of Phoenix, including Tolleson, Glendale, Peoria, Scottsdale, Mesa, Tempe, and C ...

, a semi-beltway of the Phoenix Metropolitan Area * Loop 202, a semi-beltway of the Phoenix Metropolitan Area *

Loop 303 Arizona State Route 303 (SR 303) or Loop 303, also known as the Bob Stump Memorial Parkway (formerly the Estrella Freeway), is a freeway that serves the west part of the Phoenix metropolitan area. The freeway, originally a two-lane ...

, a semi-beltway of the Phoenix Metropolitan Area *

Chicago Loop The Loop, one of Chicago's 77 designated community areas, is the central business district of the city and is the main section of Downtown Chicago. Home to Chicago's commercial core, it is the second largest commercial business district in Nort ...

, the downtown neighborhood of Chicago bounded by the elevated railway The Loop **

Loop Retail Historic District Loop Retail Historic District is a shopping district within the Chicago Loop community area in Cook County, Illinois, United States. It is bounded by Lake Street to the north, Ida B. Wells Drive to the south, State Street to the west and Waba ...

, a shopping district in the Chicago Loop *

Delmar Loop The Delmar Loop, often referred to by St. Louis residents simply as The Loop, is an entertainment, cultural and restaurant district in University City, Missouri and the adjoining western edge of St. Louis near Washington University in St. Louis an ...

, an entertainment district in St. Louis, Missouri *

London Outer Orbital Path The London Outer Orbital Path — more usually the "London LOOP" — is a 150-mile (242 km) signed walk along public footpaths, and through parks, woods and fields around the edge of Outer London, England, described as "the M25 ...

(LOOP), a signed walk around the edge of Outer London, England *

Louisiana Offshore Oil Port The Louisiana Offshore Oil Port (LOOP) is a deepwater port in the Gulf of Mexico 29 kilometers (18 nautical miles) off the coast of Louisiana near the town of Port Fourchon. LOOP provides tanker offloading and temporary storage services for crud ...

(LOOP), a deep-water port in the Gulf of Mexico off the coast of Louisiana

People

Call Me Loop Georgia Buchanan (born 23 December 1990), known professionally as Call Me Loop, is an English singer and songwriter. Following the release of her debut single "Looking at You" in 2016, she has since independently released two extended plays, ''C ...

(born 1991), English singer and songwriter * Liza Loop, American technology pioneer *

Uno Loop Uno Loop (31 May 1930 – 8 September 2021) was an Estonians, Estonian singer, musician, athlete, actor, and educator. Loop's career as a musician and singer began in the early 1950s. He performed with various ensembles and as a popular soloist b ...

(1930–2021), Estonian singer, musician, athlete, actor, and educator

Arts, entertainment, and media

Film

* ''Loop'' (1991 film), a British romantic comedy * ''Loop'' (1999 film), a Venezuelan film * ''Loop'' (2020 film), an American animated short * Film loop, the slack portion of the film around the projector lens in a

movie projector A movie projector is an opto- mechanical device for displaying motion picture film by projecting it onto a screen. Most of the optical and mechanical elements, except for the illumination and sound devices, are present in movie cameras. Mo ...

Porn loop Pornographic films (pornos), erotic films, sex films, and 18+ films are films that present sexually explicit subject matter in order to arouse and satisfy the viewer. Pornographic films present sexual fantasies and usually include erotic ...

, an 8 or 16 mm video "short" of a pornographic nature that could be purchased from men's magazines starting in the 1950s

Music

Groups

Loop (band) Loop are an English rock band, formed in 1986 by Robert Hampson in Croydon. The group topped the UK independent charts with their albums '' Fade Out'' (1989) and '' A Gilded Eternity'' (1990). Their dissonant "trance-rock" sound drew on the wo ...

, a London rock band

Other uses in music

* ''Loop'' (album), a 2002 album by Keller Williams *

Loop (music) In music, a loop is a repeating section of sound material. Short sections can be repeated to create ostinato patterns. Longer sections can also be repeated: for example, a player might loop what they play on an entire verse of a song in order to ...

, a finite element of sound which is repeated by technical means * "Loop" (song), a song by Maaya Sakamoto * ''Loop'', a 2020 mini-album by

Peakboy Kwon Sung-hwan (; born May 27, 1989), better known by his stage name Peakboy (), is a South Korean rapper, record producer, and singer-songwriter. He released his debut single "Gin & Tonic" in 2017 via SoundCloud and first mini-album ''Portrai ...

Other uses in arts, entertainment, and media

* ''Loop'' (novel), a novel in the ''Ring'' series by Koji Suzuki *

LOOP Barcelona LOOP is an annual meeting point in Barcelona for video art. The platform takes the form of a festival, a fair and conferences. Over a two-week period, the LOOP Festival presents works of 800 artists to nearly 200,000 visitors in 100 locations, ...

, an annual meeting point for video art in Barcelona, Spain * ''

Loop Mania ''Loop Mania'' is a mobile arcade video game developed by Umbrella and Games From Outer Space and published by Umbrella. It was released on 6 April 2016 for iOS and 27 May for Android Android may refer to: Science and technology * Android ...

'', a mobile arcade video game

Computing and technology

Loop (computing) In computer science, control flow (or flow of control) is the order in which individual statements, instructions or function calls of an imperative program are executed or evaluated. The emphasis on explicit control flow distinguishes an '' ...

, a method of control flow in computer science * LOOP (programming language), the pedagogical primitive recursive programming language with bounded loops * Loop (telecommunication), sending a signal on a channel and receiving it back at the sending terminal *

Audio induction loop Audio induction loop systems, also called audio-frequency induction loops (AFILs) or hearing loops, are an assistive listening technology for individuals with reduced ranges of hearing. A hearing loop consists of one or more physical loop of ca ...

, an aid for the hard of hearing *

Local loop In telephony, the local loop (also referred to as the local tail, subscriber line, or in the aggregate as the last mile) is the physical link or circuit that connects from the demarcation point of the customer premises to the edge of the comm ...

, the physical link in telephony that links the customer premises to the telephone company (telco) *

Loop device In Unix-like operating systems, a loop device, vnd (vnode disk), or lofi (loop file interface) is a pseudo-device that makes a computer file accessible as a block device. Before use, a loop device must be connected to an extant file in the file ...

, a Unix device node that allows a file to be mounted as if it were a device * LOOPS, the object system for

Interlisp Interlisp (also seen with a variety of capitalizations) is a programming environment built around a version of the programming language Lisp. Interlisp development began in 1966 at Bolt, Beranek and Newman (renamed BBN Technologies) in Cambridge, ...

-D

Mathematics

Loop (algebra) In mathematics, especially in abstract algebra, a quasigroup is an algebraic structure resembling a group in the sense that " division" is always possible. Quasigroups differ from groups mainly in that they need not be associative and need not ha ...

, a quasigroup with an identity element *

Loop (graph theory) In graph theory, a loop (also called a self-loop or a ''buckle'') is an edge that connects a vertex to itself. A simple graph contains no loops. Depending on the context, a graph or a multigraph may be defined so as to either allow or disallow t ...

, an edge that begins and ends on the same vertex *

Loop (topology) In mathematics, a loop in a topological space is a continuous function from the unit interval to such that In other words, it is a path whose initial point is equal to its terminal point.. A loop may also be seen as a continuous map fro ...

, a path that starts and ends at the same point, possibly reduced to a single point

Sports

* Loop, a type of playboating maneuver *

Aerobatic loop Aerobatics is the practice of flying maneuvers involving aircraft attitudes that are not used in conventional passenger-carrying flights. The term is a portmanteau of "aerial" and "acrobatics". Aerobatics are performed in aeroplanes and glider ...

, a type of aircraft aerobatic maneuver *

Loop (cricket) In cricket, the flight of the ball is its trajectory through the air between being released by the bowler and bouncing on the pitch. The flight of a delivery may be varied by changing the pace of the ball or through use of the Magnus force. Fligh ...

, an aspect of bowling in cricket *

Loop jump The loop jump is an edge jump in the sport of figure skating. The skater executes it by taking off from the back outside edge of the skating foot, turning one rotation in the air, and landing on the back outside edge of the same foot. It is oft ...

, a figure skating jump * Loop, a type of offensive shot in table tennis

Roller coasters

Loop (roller coaster) The generic roller coaster vertical loop, where a section of track causes the riders to complete a 360 degree turn, is the most basic of roller coaster inversions. At the top of the loop, riders are completely inverted. History The vertical l ...

, a basic roller coaster inversion * Pretzel loop, a roller coaster element

Transportation

* ''Loop'' (Amtrak train), a discontinued Amtrak train *

The Loop (CTA) The Loop (historically Union Loop) is the long circuit of elevated rail that forms the hub of the Chicago "L" system in the United States. As of 2012, the branch has served 74,651 passengers every weekday. The Loop is so named because the elev ...

, a rapid transit section bounding Chicago's Loop neighborhood * Loop, underground public transportation system of

The Boring Company The Boring Company (TBC) is an American infrastructure and tunnel construction services company founded by Elon Musk. Its ongoing and proposed projects are designed for intra-city ("loop") transit systems. After six years TBC has completed on ...

in Tesla cars, including a proposed DC-to-Baltimore system *

Balloon loop A balloon loop, turning loop, or reversing loop ( North American Terminology) allows a rail vehicle or train to reverse direction without having to shunt or stop. Balloon loops can be useful for passenger trains and unit freight trains. Bal ...

, a section of track that allows reversal of direction without stopping *

Circle route A circle route (also circumference, loop, ring route, ring line or orbital line) is a public transport route following a path approximating a circle or at least a closed curve. The expression "circle route" may refer in particular to: * a ro ...

, a public transport route that travels around and connecting the peripheral zones of an area. * Loop line (railway), a branch line that deviates from a direct route and rejoins it at another location *

Loop route In road transportation in the United States, a special route is a road in a numbered highway system that diverts a specific segment of related traffic away from another road. They are featured in many highway systems; most are found in the ...

, a main route or highway that forms a closed loop *

Passing loop A passing loop (UK usage) or passing siding (North America) (also called a crossing loop, crossing place, refuge loop or, colloquially, a hole) is a place on a single line railway or tramway, often located at or near a station, where trains or ...

, a short section of track that allows trains to pass on a single track route *

Ring road A ring road (also known as circular road, beltline, beltway, circumferential (high)way, loop, bypass or orbital) is a road or a series of connected roads encircling a town, city, or country. The most common purpose of a ring road is to assist i ...

or loop, a main route or highway that encircles a town or city *

Spiral (railway) A spiral (sometimes called a spiral loop or just loop) is a technique employed by railways to ascend steep hills. A railway spiral rises on a steady curve until it has completed a loop, passing over itself as it gains height, allowing the railw ...

, a section of track that allows a train to climb a steep hill

Other uses

Loop (biochemistry) A turn is an element of secondary structure in proteins where the polypeptide chain reverses its overall direction. Definition According to one definition, a turn is a structural motif where the Cα atoms of two residues separated by a few (usu ...

, a flexible region in a protein's secondary structure *

Loop (education) Looping, in education, refers to the practice of a teacher remaining with the same group of students for more than one school year. For example, a teacher who teaches a third grade class and then goes on to teach the same students, the followin ...

, the process of advancing an elementary school teacher with his or her class *

Loop (knot) This page explains commonly used terms related to knots. B Bend A bend is a knot used to join two lengths of rope. Bight A bight has two meanings in knotting. It can mean either any central part of a rope (between the standing end an ...

, one of the fundamental structures used to tie knots * Loop, a

cul de sac A dead end, also known as a cul-de-sac (, from French for 'bag-bottom'), no through road or no exit road, is a street with only one inlet or outlet. The term "dead end" is understood in all varieties of English, but the official terminology ...

* Loop, a type of

fingerprint A fingerprint is an impression left by the friction ridges of a human finger. The recovery of partial fingerprints from a crime scene is an important method of forensic science. Moisture and grease on a finger result in fingerprints on surfa ...

pattern