Definition of line:
a formation of people or things one beside another; "the line of soldiers advanced with their bayonets fixed"; "they were arrayed in line of battle"; "the cast stood in line for the curtain call"
a mark that is long relative to its width; "He drew a line on the chart"
a formation of people or things one behind another; "the line stretched clear around the corner"; "you must wait in a long line at the checkout counter"
a length (straight or curved) without breadth or thickness; the trace of a moving point
text consisting of a row of words written across a page or computer screen; "the letter consisted of three short lines"; "there are six lines in every stanza"
a single frequency (or very narrow band) of radiation in a spectrum
a fortified position (especially one marking the most forward position of troops); "they attacked the enemy's line"
a course of reasoning aimed at demonstrating a truth or falsehood; the methodical process of logical reasoning; "I can't follow your line of reasoning"
a conductor for transmitting electrical or optical signals or electric power
a connected series of events or actions or developments; "the government took a firm course"; "historians can only point out those lines for which evidence is available"
a spatial location defined by a real or imaginary unidimensional extent
a slight depression in the smoothness of a surface; "his face has many lines"; "ironing gets rid of most wrinkles"
a pipe used to transport liquids or gases; "a pipeline runs from the wells to the seaport"
the road consisting of railroad track and roadbed
a telephone connection
acting in conformity; "in line with"; "he got out of line"; "toe the line"
the descendants of one individual; "his entire lineage has been warriors"
something (as a cord or rope) that is long and thin and flexible; "a washing line"
the principal activity in your life that you do to earn money; "he's not in my line of business"
in games or sports; a mark indicating positions or bounds of the playing area
(often plural) a means of communication or access; "it must go through official channels"; "lines of communication were set up between the two firms"
a particular kind of product or merchandise; "a nice line of shoes"
a commercial organization serving as a common carrier
space for one line of print (one column wide and 1/14 inch deep) used to measure advertising
the maximum credit that a customer is allowed
a succession of notes forming a distinctive sequence; "she was humming an air from Beethoven"
persuasive but insincere talk that is usually intended to deceive or impress; "`let me show you my etchings' is a rather worn line"; "he has a smooth line but I didn't fall for it"; "that salesman must have practiced his fast line of talk"
a short personal letter; "drop me a line when you get there"
a conceptual separation or distinction; "there is a narrow line between sanity and insanity"
mechanical system in a factory whereby an article is conveyed through sites at which successive operations are performed on it
be in line with; form a line along; "trees line the riverbank"
cover the interior of; "line the gloves"; "line a chimney"
make a mark or lines on a surface; "draw a line"; "trace the outline of a figure in the sand"
mark with lines; "sorrow had lined his face"
fill plentifully; "line one's pockets"
reinforce with fabric; "lined books are more enduring"