or off-line, off line

[awf-lahyn, of-]


Computers. operating independently of, or disconnected from, an associated computer.
Radio. (of a network) not supplying affiliated stations with programming but allowing each station to program its own shows, usually within a specific format.
Television. of or relating to the preliminary planning and editing of a videotaped program.
located in or serving a place not on a regular route of a railroad, bus, or air carrier: an offline ticket office.


in or to a more private place: We should take this discussion offline.

Nearby words

  1. officiously,
  2. offing,
  3. offish,
  4. offishly,
  5. offlap,
  6. offload,
  7. offprint,
  8. offscouring,
  9. offscourings,
  10. offscreen

Compare online.

Origin of offline

First recorded in 1925–30




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.
Mathematics. a continuous extent of length, straight or curved, without breadth or thickness; the trace of a moving point.
something arranged along a line, especially a straight line; a row or series: a line of trees.
a number of persons standing one behind the other and waiting their turns at or for something; queue.
something resembling a traced line, as a band of color, a seam, or a furrow: lines of stratification in rock.
a furrow or wrinkle on the face, neck, etc.: lines around the eyes.
an indication of demarcation; boundary; limit: the county line; a fine line between right and wrong.
a row of written or printed letters, words, etc.: a page of 30 lines.
a verse of poetry: A line in iambic pentameter contains five feet.
Usually lines. the words of an actor's part in a drama, musical comedy, etc.: to rehearse one's lines.
a short written message: Drop me a line when you're on vacation.
a system of public conveyances, as buses or trains, plying regularly over a fixed route: the northbound line at State Street.
a transportation or conveyance company: a steamship line.
a course of direction; route: the line of march down Main Street.
a course of action, procedure, thought, policy, etc.: That newspaper follows the communist line.
a piece of pertinent or useful information (usually followed by on): I've got a line on a good used car.
a series of generations of persons, animals, or plants descended from a common ancestor: a line of kings.
a department of activity; occupation or business: What line are you in?
Informal. a mode of conversation, especially one that is glib or exaggerated in order to impress or influence another person: He really handed her a line about his rich relatives.
a straight line drawn from an observed object to the fovea of the eye.
  1. the outer form or proportions of a ship, building, etc.: a ship of fine lines.
  2. 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.
  3. a person's lot or portion: to endure the hard lines of poverty.
  4. Chiefly British.a certificate of marriage.
a circle of the terrestrial or celestial sphere: the equinoctial line.
Fine Arts.
  1. a mark made by a pencil, brush, or the like, that defines the contour of a shape, forms hatching, etc.
  2. the edge of a shape.
Television. one scanning line.
  1. a telephone connection: Please hold the line.
  2. a wire circuit connecting two or more pieces of electric apparatus, especially the wire or wires connecting points or stations in a telegraph or telephone system, or the system itself.
the line, Geography. the equator.
a 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.
an assembly line.
Law. a limit defining one estate from another; the outline or boundary of a piece of real estate.
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).
Music. any of the straight, horizontal, parallel strokes of the staff, or one placed above or below the staff.
  1. a defensive position or front.
  2. a series of fortifications: the Maginot line.
  3. Usually lines.a distribution of troops, sentries, etc., for the defense of a position or for an attack: behind the enemy's lines.
  4. the body of personnel constituting the combatant forces of an army, as distinguished from the supply services and staff corps.
an arrangement of troops of an army or of ships of a fleet as drawn up for battle: line of battle.
a body or formation of troops or ships drawn up abreast (distinguished from columndef 6).
the class of officers serving with combatant units or warships.
the regular forces of an army or navy.
that part of an administrative organization consisting of persons actively engaged on a given project.Compare staff1(def 4).
a thread, string, cord, rope, or the like.
a clothesline: the wash hanging on the line.
a cord, wire, or the like, used for measuring or as a guide.
  1. a pipe or hose: a steam line.
  2. a rope or cable used at sea.
Slang. a small quantity of cocaine arranged in the form of a slender thread or line, as for sniffing.
Also ligne. a unit equal to 1/40 (0.025) inch (0.64 mm), for measuring the diameter of buttons.
Angling. a length of nylon, silk, linen, cord, or the like, to which are attached the leader, hook, sinker, float, etc.
  1. either of the two front rows of opposing players lined up opposite each other on the line of scrimmage: a four-man line.
  2. the line of scrimmage.
the betting odds established by bookmakers for events not covered by pari-mutuel betting, especially sporting events, as football or basketball.
Ice Hockey. the two wings and center who make up a team's offensive unit.
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.
Textiles. the longer and preferred flax or hemp fibers.Compare tow2(def 2).
Fox Hunting. the trail of scent left by a fox.
a unit of length equivalent to 1/12 (0.0833) inch (2.12 millimeters).
  1. a class or type of insurance: casualty line.
  2. the amount of insurance written for a particular risk.
Australian Slang. a girl or woman.

verb (used without object), lined, lin·ing.

to take a position in a line; range (often followed by up): to line up before the start of a parade.
  1. to hit a line drive.
  2. to line out.

verb (used with object), lined, lin·ing.

to bring into a line, or into line with others (often followed by up): to line up troops.
to mark with a line or lines: to line paper for writing.
to sketch verbally or in writing; outline (often followed by out): We followed the plan he had lined out.
to arrange a line along: to line a coast with colonies.
to form a line along: Rocks lined the drive.
to apply eyeliner to (the eyes).
to delineate with or as if with lines; draw: to line the silhouette of a person's head.
Archaic. to measure or test with a line.

Verb Phrases

line out,
  1. be put out by hitting a line drive caught on the fly by a player of the opposing team.
  2. to execute or perform: He lined out a few songs upon request.
line up, to secure; make available: to line up support; to line up a speaker for the banquet.

Origin of line

before 1000; Middle English li(g)ne cord, rope, stroke, series, guiding rule, partly < Old French ligneLatin līnea, noun use of feminine of līneus flaxen (orig. applied to string), equivalent to līn(um) flax (see line2) + -eus -eous, partly continuing Old English līne string, row, series < Latin, as above

Related formslin·a·ble, line·a·ble, adjectiveline·less, adjectiveline·like, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for off-line

British Dictionary definitions for off-line




a narrow continuous mark, as one made by a pencil, pen, or brush across a surface
such a mark cut into or raised from a surface
a thin indented mark or wrinkle
a straight or curved continuous trace having no breadth that is produced by a moving point
  1. any straight one-dimensional geometrical element whose identity is determined by two points. A line segment lies between any two points on a line
  2. 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
a border or boundarythe county line
  1. a white or coloured band indicating a boundary or division on a field, track, etc
  2. a mark or imaginary mark at which a race begins or ends
American football
  1. See line of scrimmage
  2. the players arranged in a row on either side of the line of scrimmage at the start of each play
a specified point of change or limitthe dividing line between sanity and madness
  1. the edge or contour of a shape, as in sculpture or architecture, or a mark on a painting, drawing, etc, defining or suggesting this
  2. the sum or type of such contours or marks, characteristic of a style or designthe line of a draughtsman; the line of a building
anything long, flexible, and thin, such as a wire or stringa washing line; a fishing line
a telephone connectiona direct line to New York
  1. a conducting wire, cable, or circuit for making connections between pieces of electrical apparatus, such as a cable for electric-power transmission, telecommunications, etc
  2. (as modifier)the line voltage
a system of travel or transportation, esp over agreed routesa shipping line
a company operating such a system
a route between two points on a railway
mainly British
  1. a railway track, including the roadbed, sleepers, etc
  2. one of the rails of such a track
NZ a roadway usually in a rural area
a course or direction of movement or advancethe line of flight of a bullet
a course or method of action, behaviour, etctake a new line with him
a policy or prescribed course of action or way of thinking (often in the phrases bring or come into line)
a field of study, interest, occupation, trade, or professionthis book is in your line
alignment; true (esp in the phrases in line, out of line)
one kind of product or articlea nice line in hats
NZ a collection of bales of wool all of the one type
a row of persons or thingsa line of cakes on the conveyor belt
a chronological or ancestral series, esp of peoplea line of prime ministers
a row of words printed or written across a page or column
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
a short letter; notejust a line to say thank you
a piece of useful information or hint about somethinggive me a line on his work
one of a number of narrow horizontal bands forming a television picture
physics a narrow band in an electromagnetic spectrum, resulting from a transition in an atom, ion, or molecule of a gas or plasma
  1. any of the five horizontal marks that make up the staveCompare space (def. 10)
  2. the musical part or melody notated on one such set
  3. a discernible shape formed by sequences of notes or musical soundsa meandering melodic line
  4. (in polyphonic music) a set of staves that are held together with a bracket or brace
a unit of magnetic flux equal to 1 maxwell
a defensive or fortified position, esp one that marks the most forward position in war or a national boundarythe front line
line ahead or line abreast a formation adopted by a naval unit for manoeuvring
a formation adopted by a body or a number of military units when drawn up abreast
the combatant forces of certain armies and navies, excluding supporting arms
fencing one of four divisions of the target on a fencer's body, considered as areas to which specific attacks are made
the scent left by a fox
  1. the equator (esp in the phrase crossing the line)
  2. any circle or arc on the terrestrial or celestial sphere
the amount of insurance written by an underwriter for a particular risk
US and Canadian a line of people, vehicles, etc, waiting for somethingAlso called (in Britain and certain other countries): queue
slang a portion of a powdered drug for snorting
slang something said for effect, esp to solicit for money, sex, etche gave me his usual line
above the line
  1. accountingdenoting entries above a horizontal line on a profit and loss account, separating those that establish the profit or loss from those that show how the profit is distributed
  2. denoting revenue transactions rather than capital transactions in a nation's accounts
  3. marketingexpenditure on media advertising through an agency, rather than internally arranged advertising, such as direct mail, free samples, etc
  4. bridgedenoting bonus points, marked above the horizontal line on the score card
below the line
  1. accountingdenoting entries below a horizontal line on a profit and loss account, separating those that establish the profit or loss from those that show how the profit is distributed
  2. denoting capital transactions rather than revenue transactions in a nation's accounts
  3. marketingdenoting expenditure on advertising by other means than the traditional media, such as the provision of free gifts, special displays, direct mailshots, etc
  4. bridgedenoting points scored towards game and rubber, marked below the horizontal line on the score card
all along the line
  1. at every stage in a series
  2. in every detail
do a line Irish and Australian informal to associate (with a person of the opposite sex) regularly; go out (with)he is doing a line with her
draw the line to reasonably object (to) or set a limit (on)her father draws the line at her coming in after midnight
get a line on informal to obtain information about
hold the line
  1. to keep a telephone line open
  2. footballto prevent the opponents from taking the ball forward
  3. (of soldiers) to keep formation, as when under fire
in line for in the running for; a candidate forhe's in line for a directorship
in line with conforming to
in the line of duty as a necessary and usually undesired part of the performance of one's responsibilities
lay on the line or put on the line
  1. to pay money
  2. to speak frankly and directly
  3. to risk (one's career, reputation, etc) on something
shoot a line informal to try to create a false image, as by boasting or exaggerating
step out of line to fail to conform to expected standards, attitudes, etc
toe the line to conform to expected standards, attitudes, etc


(tr) to mark with a line or lines
(tr) to draw or represent with a line or lines
(tr) to be or put as a border totulips lined the lawns
to place in or form a row, series, or alignment
See also lines, line-up

Derived Formslinable or lineable, adjectivelined, adjectivelinelike, adjectiveliny or liney, adjective

Word Origin for line

C13: 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



verb (tr)

to attach an inside covering to (a garment, curtain, etc), as for protection, to hide the seaming, or so that it should hang well
to cover or fit the inside ofto line the walls with books
to fill plentifullya purse lined with money
to reinforce the back of (a book) with fabric, paper, etc

Word Origin for line

C14: ultimately from Latin līnum flax, since linings were often made of linen




of, relating to, or concerned with a part of a computer system not connected to the central processing unit but controlled by a computer storage deviceSee online
disconnected from a computer; switched off
extra to or not involving a continuous sequence of operations, such as a production line
radio television (of processes, such as editing) not carried out on the actual transmission medium


while not connected to a computer or the internet
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for off-line
Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for off-line




The path traced by a moving point.
A thin continuous mark, as that made by a pen, pencil, or brush applied to a surface.
A crease in the skin, especially on the face; a wrinkle.
In anatomy, a long narrow mark, strip, or streak distinguished from adjacent tissue by color, texture, or elevation.
A real or imaginary mark positioned in relation to fixed points of reference.
A border, boundary, or demarcation.
A contour or an outline.
A mark used to define a shape or represent a contour.
Any of the marks that make up the formal design of a picture.
A cable, rope, string, cord, or wire.
A general method, manner, or course of procedure.
A manner or course of procedure determined by a specified factor.
An official or prescribed policy.
Ancestry or lineage.
A series of persons, especially from one family, who succeed each other.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for off-line



A geometric figure formed by a point moving in a fixed direction and in the reverse direction. The intersection of two planes is a line.♦ The part of a line that lies between two points on the line is called a line segment.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for off-line


A set of points that have one dimension — length — but no width or height. (See coordinates.)

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with off-line


In addition to the idioms beginning with line

  • line of fire, in the
  • line one's pockets
  • line up

also see:

  • all along (the line)
  • along the lines of
  • blow it (one's lines)
  • bottom line
  • chow down (line)
  • down the line
  • draw a line
  • draw the line at
  • drop a line
  • end of the line
  • fall in line
  • feed someone a line
  • firing line
  • get a line on
  • go on (line)
  • hard line
  • hold the line
  • hook, line, and sinker
  • hot line
  • in line
  • lay on the line
  • least resistance, line of
  • on line
  • out of line
  • party line
  • read between the lines
  • sign on the dotted line
  • somewhere along the line
  • step out of line
  • toe the line
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.