UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈlaɪn/US:USA pronunciation: IPA and respellingUSA pronuncation: IPA/laɪn/ ,USA pronunciation: respelling(līn)

Inflections of 'line' (v): (⇒ conjugate)
v 3rd person singular
v pres pverb, present participle: -ing verb used descriptively or to form progressive verb--for example, "a singing bird," "It is singing."
v pastverb, past simple: Past tense--for example, "He saw the man." "She laughed."
v past pverb, past participle: Verb form used descriptively or to form verbs--for example, "the locked door," "The door has been locked."

WordReference Random House Learner's Dictionary of American English © 2020
line1 /laɪn/USA pronunciation   n., v.,  lined, lin•ing. 
n. [countable]
  1. a long mark of very slight thickness or breadth:notebook paper with blue lines.
  2. something arranged along a line, esp. a straight line;
    a row:hid behind a line of trees.
  3. a number of persons standing one behind the other:a long line for tickets to the play.
  4. See in line, on line below.
  5. a mark or wrinkle on the face, neck, etc.
  6. an indication of a boundary;
    limit:the international date line.
  7. Printinga row of written or printed letters, words, etc.
  8. Poetrya unit in the structure of a poem:a line of poetry.
  9. Show BusinessUsually,  lines. [plural] the words of an actor's part in a drama, musical comedy, etc.
  10. a short written message:Drop me a line when you're on vacation.
  11. Transporta system of transportation:a steamship line; a subway line.
  12. a course of direction;
    route:the line of flight.
  13. a course of action, procedure, thought, policy, etc.:That newspaper follows a conservative line.
  14. a piece of useful information:I've got a line on a good used car.
  15. a series of generations descended from a common ancestor:a line of kings.
  16. a person's occupation:[usually singular]What line are you in?
  17. Informal Termsconversation or a story intended to impress or influence:He handed us a line about his rich relatives.
  18. outline or contour:That ship has fine lines.
  19. lines, [plural]
    • a plan of construction, action, or procedure:The two books were written along the same lines.
  20. Telecommunications
    • a circuit or connection, as a telephone connection:Please hold the line.
  21. Business, Clothinga stock of goods of the same general class but having a range of styles, sizes, prices, or quality:introduced a new line of beauty products.
  22. Military
    • a series of fortifications:the Maginot line.
    • MilitaryOften,  lines. a distribution of troops, ships, etc., arranged for defense or drawn up for battle:behind enemy lines.
  23. a thread, string, cord, rope, cable, etc., as a clothesline, or a cord with a hook for fishing.
  24. Nautical, Naval Termsa pipe or hose:A steam line had ruptured in the submarine's engine room.
  25. Sporteither of the two front rows of football players who are lined up opposite each other at the start of a play.

  1. Sport[Baseball.]to hit a line drive: [+ object]He lined the ball into left field.[no object]He lined to left his next time at bat.
  2. [+ object] to mark with a line or lines.
  3. to form a line along:[+ object]Rocks lined the drive.
  4. Clothing[+ object] to apply liner to (the eyes).
  5. line up: 
    • to obtain for use;
      make available: [+ up + object]What entertainment did you line up?[+ object + up]He lined them up six months ago.
    • to (cause to) take a position in a line:[no object]We lined up at the ticket office.[+ up + object]The sergeant lined up his troops.[+ object + up]The sergeant lined his troops up.
  1. Idiomsdown the line: 
    • in every way;
      completely:They promised to back me down the line.
    • in the future:We'll use your plan down the line when things improve financially.
  2. Idiomsdraw the line, to impose or establish a restriction or limit:They draw the line at drinking before noon.
  3. Idiomshold the line, to maintain the current situation:to hold the line on price increases.
  4. Idiomsin line: 
    • in the proper direction or alignment;
      straight:The four wheels are in line.
    • Idiomsin agreement with or in proportion to (some standard):brought our inflation rate in line with the rest of Europe.
    • under control:kept his squirming children in line during the long opera.
    • arranged one behind the other;
      in a row:We have been waiting in line since six in the morning.
  5. in line for, in a position to become:She was in line for president.
  6. Idiomsinto line: 
    • into a straight row:Get your soldiers into line.
    • into agreement with or in proportion to (some standard):to bring manufacturing prices into line.
  7. Idiomslay it on the line, [Informal.]to say, tell, or give information directly and honestly.
  8. Idiomsoff line: 
    • occurring or functioning away from the central work location, as an assembly line.
    • not in operation;
      not functioning.
    • not actively linked to a computer or central computer.
  9. on line: 
    • on or part of an assembly line.
    • in or into operation.
    • actively linked to a computer.
  10. Idiomson the line: 
    • in a dangerous or risky position:He had put his reputation on the line.
  11. Idioms, Informal Termsout of line: 
    • not in a straight line:The tires had worn and were now out of line.
    • disrespectful;
      behaving badly:You're way out of line, criticizing his wife like that.
  12. read between the lines, to understand, uncover, or discover a meaning hinted at but not said directly.

See -lin-.
line2 /laɪn/USA pronunciation   v. [+ object], lined, lin•ing. 
  1. to cover the inner side or surface of:to line a coat with blue silk.
  2. to cover:Bookcases lined the wall.
See -lin-.
WordReference Random House Unabridged Dictionary of American English © 2020
line1  (līn),USA pronunciation n., v.,  lined, lin•ing. 
  1. a mark or stroke long in proportion to its breadth, made with a pen, pencil, tool, etc., on a surface:a line down the middle of the page.
  2. Mathematicsa continuous extent of length, straight or curved, without breadth or thickness;
    the trace of a moving point.
  3. Mechanical Engineeringsomething arranged along a line, esp. a straight line;
    a row or series:a line of trees.
  4. a number of persons standing one behind the other and waiting their turns at or for something;
  5. something resembling a traced line, as a band of color, a seam, or a furrow:lines of stratification in rock.
  6. a furrow or wrinkle on the face, neck, etc.:lines around the eyes.
  7. an indication of demarcation;
    limit:the county line; a fine line between right and wrong.
  8. Printinga row of written or printed letters, words, etc.:a page of 30 lines.
  9. Poetrya verse of poetry:A line in iambic pentameter contains five feet.
  10. Show BusinessUsually,  lines. the words of an actor's part in a drama, musical comedy, etc.:to rehearse one's lines.
  11. a short written message:Drop me a line when you're on vacation.
  12. Transporta system of public conveyances, as buses or trains, plying regularly over a fixed route:the northbound line at State Street.
  13. Transporta transportation or conveyance company:a steamship line.
  14. a course of direction;
    route:the line of march down Main Street.
  15. a course of action, procedure, thought, policy, etc.:That newspaper follows the communist line.
  16. a piece of pertinent or useful information (usually fol. by on):I've got a line on a good used car.
  17. a series of generations of persons, animals, or plants descended from a common ancestor:a line of kings.
  18. a department of activity;
    occupation or business:What line are you in?
  19. Informal Termsa mode of conversation, esp. one that is glib or exaggerated in order to impress or influence another person:He really handed her a line about his rich relatives.
  20. Ophthalmologya straight line drawn from an observed object to the fovea of the eye.
  21. lines: 
    • the outer form or proportions of a ship, building, etc.:a ship of fine lines.
    • a general form, as of an event or something that is made, which may be the basis of comparison, imitation, etc.:two books written along the same lines.
    • a person's lot or portion:to endure the hard lines of poverty.
    • British Terms[Chiefly Brit.]a certificate of marriage.
  22. Geographya circle of the terrestrial or celestial sphere:the equinoctial line.
  23. Journalismbanner (def. 7).
  24. Fine Art
    • a mark made by a pencil, brush, or the like, that defines the contour of a shape, forms hatching, etc.
    • the edge of a shape.
  25. Radio and Television[Television.]one scanning line.
  26. Telecommunications
    • a telephone connection:Please hold the line.
    • a wire circuit connecting two or more pieces of electric apparatus, esp. the wire or wires connecting points or stations in a telegraph or telephone system, or the system itself.
  27. Geographythe line, the equator.
  28. Business, Clothinga stock of commercial goods of the same general class but having a range of styles, sizes, prices, or quality:the company's line of shoes.
  29. an assembly line.
  30. Lawa limit defining one estate from another;
    the outline or boundary of a piece of real estate.
  31. Games[Bridge.]a line on a score sheet that separates points scored toward game(below the line) from points scored by setting a contract, having honors, etc.(above the line). 
  32. [Music.]any of the straight, horizontal, parallel strokes of the staff, or one placed above or below the staff.
  33. Military
    • a defensive position or front.
    • a series of fortifications:the Maginot line.
    • MilitaryUsually,  lines. a distribution of troops, sentries, etc., for the defense of a position or for an attack:behind the enemy's lines.
    • the body of personnel constituting the combatant forces of an army, as distinguished from the supply services and staff corps.
  34. Militaryan arrangement of troops of an army or of ships of a fleet as drawn up for battle:line of battle.
  35. Militarya body or formation of troops or ships drawn up abreast (distinguished from column).
  36. Militarythe class of officers serving with combatant units or warships.
  37. Militarythe regular forces of an army or navy.
  38. that part of an administrative organization consisting of persons actively engaged on a given project. Cf. staff1 (def. 4).
  39. a thread, string, cord, rope, or the like.
  40. a clothesline:the wash hanging on the line.
  41. a cord, wire, or the like, used for measuring or as a guide.
  42. [Naut.]
    • Naval Termsa pipe or hose:a steam line.
    • Naval Termsa rope or cable used at sea.
  43. Slang Termsa small quantity of cocaine arranged in the form of a slender thread or line, as for sniffing.
  44. ClothingAlso,  ligne. a unit, &fracnumer;
    inch (0.635 millimeter), for measuring the diameter of buttons.
  45. Sport[Angling.]a length of nylon, silk, linen, cord, or the like, to which are attached the leader, hook, sinker, float, etc.
  46. Sport[Football.]
    • either of the two front rows of opposing players lined up opposite each other on the line of scrimmage:a four-man line.
    • See  line of scrimmage. 
  47. Sportthe betting odds established by bookmakers for events not covered by pari-mutuel betting, esp. sporting events, as football or basketball.
  48. Sport[Ice Hockey.]the two wings and center who make up a team's offensive unit.
  49. Sport[Fencing.]any of the four divisions of the portion of a fencer's body on which a touch can be scored, taken as an area of attack or defense.
  50. Textilesthe longer and preferred flax or hemp fibers. Cf. tow2 (def. 2).
  51. Sport[Fox Hunting.]the trail of scent left by a fox.
  52. Weights and Measuresa unit of length equivalent to &fracnumer;
    inch (2.12 millimeters).
  53. Business[Insurance.]
    • a class or type of insurance:casualty line.
    • the amount of insurance written for a particular risk.
  54. British Terms[Australian Slang.]a girl or woman.
  55. Idiomsbring, come, or  get into line: 
    • to become or cause to become straight, as in a row:The members of the marching band got into line.
    • to conform or cause to conform or agree:They were persuaded to come into line with the party's policy.
  56. Idiomsdown the line: 
    • in all ways;
      fully:It's a fine house right down the line—well-built, roomy, attractive.
    • in the future.
  57. Idiomsdraw the line, to impose a restriction;
    limit:They might exaggerate but would draw the line at outright lying.
  58. Show Business, British Terms, Idiomsgo up in one's lines, [U.S.]Theat. to forget one's part during a performance. Also,[Brit.,] go up on one's lines. 
  59. Idiomshold the line, to maintain the status quo, esp. in order to forestall unfavorable developments:We're trying to hold the line on prices.
  60. Idiomsin line: 
    • in alignment;
    • Idiomsin conformity or agreement.
    • Idiomsin control (of one's conduct):to keep one's temper in line.
    • prepared;
    • Idiomswaiting one behind the other in a queue:There were eight people in line at the teller's window.
  61. Idiomsin line with, in agreement or conformity with:The action taken was in line with her decision.
  62. Idiomsin the line of duty, in the execution of the duties belonging to some occupation, esp. with regard to the responsibility for life and death:a policeman wounded in the line of duty.Also,  in line of duty. 
  63. Informal Termslay it on the line: 
    • to give money;
    • to give the required information;
      speak directly or frankly:I'm going to stop being polite and lay it on the line.
  64. Idiomsoff line: 
    • occurring or functioning away from an assembly line, work process, etc.
    • not in operation;
      not functioning.
  65. Sporton a line, [Baseball.](of a batted or thrown ball) through the air in an approximately straight line from the point of impact or delivery:hit on a line between third and short; thrown in on a line from the center fielder.
  66. on line: 
    • on or part of an assembly line:Production will be improved when the new welding equipment is on line.
    • in or into operation:The manufacturing facilities will be on line before November.
    • [Computers.]actively linked to a computer:The printer is not yet on line.
    • Dialect Terms[Chiefly New York City.]See  line 1 (def. 60e).
  67. Informal Terms, Idiomson the line: 
    • being risked or put in jeopardy;
      in a vulnerable position:Our prestige and honor are on the line.
    • immediately;
      readily:paid cash on the line.
  68. Idiomsout of line: 
    • not in a straight line.
    • Idiomsin disagreement with what is accepted or practiced.
    • , Idioms, Informal Terms[Informal.]impertinent;
      presumptuous:That last remark was out of line.
  69. Idiomsread between the lines, to understand the unexpressed but implied meaning of something said or written:Her letter sounded cheerful enough, but I read a certain sadness between the lines.
  70. Idiomstoe the line or  mark: 
    • to conform strictly to a rule, command, etc.
    • to shoulder responsibilities;
      do one's duty:He tried hard to toe the line on the new job.

  1. to take a position in a line;
    range (often fol. by up):to line up before the start of a parade.
  2. Sport[Baseball.]
    • to hit a line drive.
    • to line out.

  1. to bring into a line, or into line with others (often fol. by up):to line up troops.
  2. to mark with a line or lines:to line paper for writing.
  3. to sketch verbally or in writing;
    outline (often fol. by out):We followed the plan he had lined out.
  4. to arrange a line along:to line a coast with colonies.
  5. to form a line along:Rocks lined the drive.
  6. to apply liner to (the eyes).
  7. to delineate with or as if with lines;
    draw:to line the silhouette of a person's head.
  8. [Archaic.]to measure or test with a line.
  9. line out: 
    • Sport[Baseball.]to be put out by hitting a line drive caught on the fly by a player of the opposing team.
    • to execute or perform:He lined out a few songs upon request.
  10. line up, to secure;
    make available:to line up support; to line up a speaker for the banquet.
lina•ble, linea•ble, adj. 
lineless, adj. 
linelike′, adj. 
  • Latin, as above
  • Old French ligne Latin līnea, noun, nominal use of feminine of līneus flaxen (origin, originally applied to string), equivalent to līn(um) flax (see line2) + -eus -eous, partly continuing Old English līne string, row, series
  • Middle English li(g)ne cord, rope, stroke, series, guiding rule, partly bef. 1000

line2  (līn),USA pronunciation v.,  lined, lin•ing, n. 
  1. to cover the inner side or surface of:to line the coat with blue silk.
  2. to serve to cover:Velvet draperies lined the walls of the room.
  3. to furnish or fill:to line shelves with provisions.
  4. to reinforce the back of a book with glued fabric, paper, vellum, etc.
  5. Idiomsline one's pockets, to make much money, esp. in an illegal or questionable way.

  1. a thickness of glue, as between two veneers in a sheet of plywood.
  • Latin līnum flax
  • Middle English lynen, derivative of line linen, flax, Old English līn 1350–1400

Collins Concise English Dictionary © HarperCollins Publishers::
line /laɪn/ n
  1. a narrow continuous mark, as one made by a pencil, pen, or brush across a surface
  2. such a mark cut into or raised from a surface
  3. a thin indented mark or wrinkle
  4. a straight or curved continuous trace having no breadth that is produced by a moving point
  5. any straight one-dimensional geometrical element whose identity is determined by two points. A line segment lies between any two points on a line
  6. a set of points (x, y) that satisfies the equation y = mx + c, where m is the gradient and c is the intercept with the y-axis
  7. a border or boundary: the county line
  8. a white or coloured band indicating a boundary or division on a field, track, etc
  9. a mark or imaginary mark at which a race begins or ends
  10. See line of scrimmage
  11. the players arranged in a row on either side of the line of scrimmage at the start of each play
  12. a specified point of change or limit: the dividing line between sanity and madness
  13. the edge or contour of a shape, as in sculpture or architecture, or a mark on a painting, drawing, etc, defining or suggesting this
  14. the sum or type of such contours or marks, characteristic of a style or design: the line of a draughtsman, the line of a building
  15. anything long, flexible, and thin, such as a wire or string: a washing line, a fishing line
  16. a telephone connection: a direct line to New York
  17. a conducting wire, cable, or circuit for making connections between pieces of electrical apparatus, such as a cable for electric-power transmission, telecommunications, etc
  18. (as modifier): the line voltage
  19. a system of travel or transportation, esp over agreed routes: a shipping line
  20. a company operating such a system
  21. a route between two points on a railway
  22. chiefly Brit a railway track, including the roadbed, sleepers, etc
  23. a course or direction of movement or advance: the line of flight of a bullet
  24. a course or method of action, behaviour, etc: take a new line with him
  25. a policy or prescribed course of action or way of thinking (often in the phrases bring or come into line)
  26. a field of study, interest, occupation, trade, or profession: this book is in your line
  27. alignment; true (esp in the phrases in line, out of line)
  28. one kind of product or article: a nice line in hats
  29. a row of persons or things: a line of cakes on the conveyor belt
  30. a chronological or ancestral series, esp of people: a line of prime ministers
  31. a row of words printed or written across a page or column
  32. a unit of verse consisting of the number of feet appropriate to the metre being used and written or printed with the words in a single row
  33. a short letter; note: just a line to say thank you
  34. a piece of useful information or hint about something: give me a line on his work
  35. one of a number of narrow horizontal bands forming a television picture
  36. a narrow band in an electromagnetic spectrum, resulting from a transition in an atom, ion, or molecule of a gas or plasma
  37. any of the five horizontal marks that make up the stave
  38. the musical part or melody notated on one such set
  39. a discernible shape formed by sequences of notes or musical sounds: a meandering melodic line
  40. (in polyphonic music) a set of staves that are held together with a bracket or brace
  41. a defensive or fortified position, esp one that marks the most forward position in war or a national boundary: the front line
  42. line ahead, line abreasta formation adopted by a naval unit for manoeuvring
  43. a formation adopted by a body or a number of military units when drawn up abreast
  44. the combatant forces of certain armies and navies, excluding supporting arms
  45. the equator (esp in the phrase crossing the line)
  46. any circle or arc on the terrestrial or celestial sphere
  47. US Canadian a line of people, vehicles, etc, waiting for something
    Also called (in Britain and certain other countries): queue
  48. slang a portion of a powdered drug for snorting
  49. slang something said for effect, esp to solicit for money, sex, etc
  50. all along the lineat every stage in a series
  51. in every detail
  52. draw the lineto reasonably object (to) or set a limit (on): her father draws the line at her coming in after midnight
  53. get a line oninformal to obtain information about
  54. hold the lineto keep a telephone line open
  55. to prevent the opponents from taking the ball forward
  56. (of soldiers) to keep formation, as when under fire
  57. in line forin the running for; a candidate for: he's in line for a directorship
  58. in line withconforming to
  59. lay on the line, put on the lineto pay money
  60. to speak frankly and directly
  61. to risk (one's career, reputation, etc) on something
  62. shoot a lineinformal to try to create a false image, as by boasting or exaggerating
  1. (transitive) to mark with a line or lines
  2. (transitive) to draw or represent with a line or lines
  3. (transitive) to be or put as a border to: tulips lined the lawns
  4. to place in or form a row, series, or alignment

See also lines, line-upEtymology: 13th Century: partly from Old French ligne, ultimately from Latin līnea, n use of līneus flaxen, from līnum flax; partly from Old English līn, ultimately also from Latin līnum flax

ˈlinable, ˈlineable adj lined adj
line /laɪn/ vb (transitive)
  1. to attach an inside covering to (a garment, curtain, etc), as for protection, to hide the seaming, or so that it should hang well
  2. to cover or fit the inside of: to line the walls with books
  3. to fill plentifully: a purse lined with money
Etymology: 14th Century: ultimately from Latin līnum flax, since linings were often made of linen
'line' also found in these entries:
Collocations: lined the [streets, sidewalk], is a [thin, fine] line between [good and bad, love and hate], is on line 1, more...

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