# Line

Line most often refers to:
* Line (geometry), object that has zero thickness and curvature and stretches to infinity
* Telephone line, a single-user circuit on a telephone communication system
Line, lines, The Line, or LINE may also refer to:

## Arts, entertainment, and media
### Films

* Lines (film), a 2016 Greek film
* The Line (2023 film), an American drama
* The Line (2022 film), a Swiss, French, and Belgian drama
* The Line (2017 film), a Slovak-Ukrainian crime film
* The Line (2009 film), an American action-crime film
* The Line, a 2009 independent film by Nancy Schwartzman

### Podcasts

* The Line (podcast), 2021 by Dan Taberski

### Literature

* Line (comics), a term to describe a subset of comic book series by a publisher
* Line (play), by Israel Horovitz, 1967
* Line (poetry), the fundamental unit of poetic composition
* "Lines" (poem), an 1837 poem by Emily Brontë
* The Line (memoir), by Arch and Martin Flanagan
* The Line (play), by Timberlake Wertenbaker, 2009

### Music
#### Albums

* Lines (The Walker Brothers album), 1976
* Lines (Pandelis Karayorgis album), 1995
* Lines (Unthanks album), 2018

#### Songs

* "Line" (song), 2017 single by Triana Park
* "Lines" (song), 1976 single by The Walker Brothers
* "The Line" (Foo Fighters song), 2017
* "The Line" (Lisa Stansfield song), 1997
* "The Line" (Raye song), 2017
* "Line", 2018 song by The Story So Far from Proper Dose
* "LINE", 2015 single by Sukima Switch
* "Lines", 2007 song by Dead Letter Circus from Dead Letter Circus
* "The Line", 2010 single by Battles
* "The Line", 2000 song by Sadist from Lego
* "The Line", 1995 song by Bruce Springsteen from The Ghost of Tom Joad
* "The Line", a 2024 song recorded by Twenty One Pilots for Arcane season two

#### Other uses in music

* Line (melody), a linear succession of musical tones that the listener perceives as a single entity
* Line (music) or part, a strand or melody of music played by an individual instrument or voice

### Television

* The Line (game show), a 2014 American game show
* The Line (TV series), a Canadian television series
* "The Line" (Heroes), a 2007 episode of the American television series Heroes
* "The Line" (The Amazing World of Gumball), a 2017 episode of the British-American animated television series The Amazing World of Gumball
* The Line, a 2021 documentary series directed by Jeff Zimbalist and Doug Shultz

## Business

* Below the line, an advertising term
* Bottom line, or profit line, net profit
* Line function, primary business activity that negatively affects income if interrupted
* Line item, an accounting term
* Line of business, a product or set of related products
* Poverty line, an economics term
* Product lining, offering several related products for sale individually

## Computing and telecommunications

* Line (electrical engineering), any circuit or loop of an electrical system
** Line level, a common standard for audio signals
** Transmission line, a specialized structure designed to carry alternating current of radio frequency
* Line (text file), a row of characters as a unit of organization within text files
* Line (video), a measure of video display resolution or image resolution
* Line Corporation, a Tokyo-based technology company
** Line (software), a social messaging application operated by Line Corporation

## Military
### Land warfare

* Line (formation), standard tactical formation of forces
* Line infantry, line formation of infantrymen who were part of the "Line Regiments"
* Lines, another word for fortifications

### Sea warfare

* Line of battle, in naval warfare, a line of warships
* Line officer, (naval) officer qualified to command a vessel

## People

* Line (given name), a Scandinavian female given name
* Line (singer) (born 1996), a Danish singer and finalist in the Danish X Factor
* Peter Line (born 1974), American professional snowboarder, snowboard industry entrepreneur, writer, photographer and designer
* Peter Line (bowls) (1930–2025), English international lawn and indoor bowler
* Lines (surname)
* The Lines family of Birmingham, England, including:
** Samuel Lines (1778–1863) and his sons
*** Samuel Rostill Lines (1804–1833)
*** Frederick Thomas Lines (1808–1898)
*** Henry Harris Lines (1800 or 1801–1889)

## Places

* Líně, a municipality and village in the Czech Republic
* Linesøya, an island in the municipality of Åfjord in Norway
* The Line, Saudi Arabia, a planned city in Saudi Arabia
* Line Islands, an island group in the central Pacific
* The Line (sculpture trail), based on the Greenwich Meridian, in South East and East London

## Science

* Fault line, a geological term
* Inbred line, either of:
** Inbred strain or linear organisms, model organisms that are nearly genetically identical and are used in laboratories
** Products of line breeding, a technique in animal and plant agriculture and horticulture
* Lineage (evolution), a sequence of species that form a line of descent
* Long interspersed nuclear element, or LINE, a DNA sequence of two non-overlapping reading frames, accounting for 21% of human DNA
* Maxwell (unit), the unit of magnetic flux, formerly called line

## Sports
### Flexible ligatures

* Fishing line, used (or intended) for angling
* Kite line, cord for kite flying

### Competitive sports

* Line (ice hockey), group of forwards that play in a group, or "shift", during a game
* Line and length, direction, and distance, to first bounce on the pitch, in delivery in cricket
* Line of scrimmage, in American and Canadian football
* Racing line, in auto racing, path taken through a corner

### Sports Betting

* Line in Spread betting, number assigned by bookmakers which handicaps one team and favors another when two teams play each other, aka the spread

## Transport

* Airline, a company that provides air transport services for traveling passengers and freight
* Log-line, in nautical usage, a piece of rope which has been assigned a function
* Shipping line, a company engaged in sea transport
* Railway line, a railway route or service
* Waterline, the line where the hull of a ship meets the surface of the water

## Other uses

* Line (unit), an obsolete unit of length equal to one-twelfth or one-tenth of an inch
* The Line, a website and social media campaign promoting respectful relationships, run by Our Watch in Australia
* LINE (combat system), a martial arts system
* Line (graphics), a narrow field between two points
* Line (heraldry), used to divide and vary fields and charges in heraldry
* Queue area, known in American English as a place to stand "in line"
* Line dance, a choreographed dance of a group of people
* Writing lines, a form of school punishment