• Line (geometry), an infinitely-extending one-dimensional figure that has no curvature
• a length of rope, cable or chain when put to use (such as a clothesline, anchor line)
• a line or queue of people waiting in a queue area
• a line of text in writing
• "The Line", i.e. the equator, marked as a distinctive horizontal line on maps of the world
• Line (text file), a unit of organization for text files
• Lines (punishment), punishment by forced writing of text
• relationships in genetics and genealogy, such as Lineage (evolution) and kinship and descent
• LINEs is also a abbreviation for Long interspersed nuclear element in genomics.
• lines of cocaine
• Lines (video game)
• A one-, two- or three-line whip, a notice issued by a Chief Whip in the UK parliament
• A "straight line" is used to set up a joke, while the punch line completes it.

People

• Dick Lines (born 1938), former Canadian baseball player
• Richard D. Lines, American amateur astronomer

In science and technology

• Line (electrical engineering), a circuit or loop
• a power line for electric power transmission
• line power, domestic mains electricity
• Telephone line
• RF transmission line
• Line (video), a measure of video display resolution or image resolution
• line, former name of the unit of magnetic flux, the Maxwell (unit)
• Line (length), an obsolete unit of length equal to one-twelfth or one-tenth of an inch

In transport

• a railway line
• Shipping line, a company engaged in sea transport
• Airline
• A bus line, see List of bus operating companies

In business

• Line function, a business activity
• Product lining, in marketing

In the military

• Line (formation), a standard tactical formation of forces
• Line infantry, a line formation of infantrymen who were part of the "Line Regiments"
• Line of battle, in naval warfare, a line of warships, hence "ship of the line"

In sport

• In water sports: small rope
• The point spread in spread betting
• In cricket, the direction of a delivery, see line and length
• Offensive line or defensive line in American football
• Racing line, in auto racing, a path taken through a corner
• In kiting: Kite line

In the arts

• Line (play), a long-running play written by Israel Horovitz
• Lines (Emily Brontë poem), written in December 1837
• "Lines", abbreviation for "Lines Composed a Few Miles above Tintern Abbey, on Revisiting the Banks of the Wye during a Tour. July 13, 1798," a poem by William Wordsworth

The abbreviation LINE

• Marine Corps LINE combat system, a martial arts system
• LINEs(Long interspersed nuclear elements), a type of retrotransposon in the human genome

See also

• Division of Lyne, Australian electorial district
• Lyne (surname)
• Lyne, Denmark (town)
• Liner (disambiguation)