From Wikipedia, the free encyclopedia

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[edit]







Other uses in music[edit]

  • 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



Computing and telecommunications[edit]


Land warfare[edit]

Sea warfare[edit]




  • 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


Flexible ligatures[edit]

Competitive sports[edit]


  • 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[edit]

  • 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"
  • Writing lines, a form of school punishment

See also[edit]