Line most often refers to:

  • In geometry, art, or similar:
    • Line (geometry), an object that has zero thickness and no curvature (i.e. is straight) and stretches to infinity
    • Line segment, a finite piece of an infinite line
    • Line (graphics), a path drawn between two points
  • A line of text:
  • Telephone line, a single-user circuit on a telephone communication system
  • Queue area, known in American English as a place to stand "in line"

Line, lines, The Line, or LINE may also refer to:

Arts, entertainment, and media

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Literature

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  • Line (comics), a set of comic books, often with a separate theme or narrative from the main franchise
  • Plotline, sequence of connected events in a story

Music

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  • 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

Business

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  • Above the line (ATL) and below the line (BTL) describe advertisements that are targeted to either the general public or specific audiences, respectively
  • In the context of staff and line functions, business activities that directly advance the main goal, as opposed to staff functions' support role
  • A set of related products from the same company:
  • A line item on a form, such as the bottom line that often represents net income
  • A cutoff between categories, such as:
    • Poverty threshold, AKA poverty line or breadline, the amount of income estimated as the minimum needed to afford necessities
  • Line management, the direct supervisors of front-line workers

Computing and telecommunications

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Military

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  • Line officer or officer of the line, an officer with authority to command units

Land warfare

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Sea warfare

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Science

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  • 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

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Flexible ligatures

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  • Fishing line, used (or intended) for angling
  • Kite line, a string or cord attached to the kite, that is held or attached to an anchor, to prevent it from flying away

Competitive sports

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Sports betting

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  • 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

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  • 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

Names and titles

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People

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Places

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Films

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Works of literature

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Podcasts

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Albums

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Songs

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Television shows and episodes

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Other uses

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  • Line (unit), an obsolete unit of length equal to one-twelfth or (later) one-tenth of an inch
  • Line (heraldry), used to divide and vary fields and charges in heraldry
  • Line dance, a choreographed dance of a group of people
  • Writing lines, a form of school punishment

See also

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