Definition of "Line" :
noun: the principal activity in your life that you do to earn money
"He's not in my line of business."
noun: acting in conformity
"In line with."
noun: a conductor for transmitting electrical or optical signals or electric power
noun: something (as a cord or rope) that is long and thin and flexible
"A washing line."
noun: the road consisting of railroad track and roadbed
noun: a commercial organization serving as a common carrier
noun: a particular kind of product or merchandise
"A nice line of shoes."
noun: a pipe used to transport liquids or gases
"A pipeline runs from the wells to the seaport."
noun: mechanical system in a factory whereby an article is conveyed through sites at which successive operations are performed on it
noun: a telephone connection
noun: a conceptual separation or distinction
"There is a narrow line between sanity and insanity."
noun: 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."
noun: (often plural) a means of communication or access
"Lines of communication were set up between the two firms."
noun: a short personal letter
"Drop me a line when you get there."
noun: a mark that is long relative to its width
"He drew a line on the chart."
noun: text consisting of a row of words written across a page or computer screen
"The letter consisted of three short lines."
noun: persuasive but insincere talk that is usually intended to deceive or impress
"Let me show you my etchings' is a rather worn line."
noun: a succession of notes forming a distinctive sequence
noun: the descendants of one individual
"His entire lineage has been warriors."
noun: a connected series of events or actions or developments
"Historians can only point out those lines for which evidence is available."
noun: a formation of people or things one behind another
"The line stretched clear around the corner."
noun: a formation of people or things one beside another
"The line of soldiers advanced with their bayonets fixed."
noun: a spatial location defined by a real or imaginary unidimensional extent
noun: in games or sports; a mark indicating positions or bounds of the playing area
noun: a fortified position (especially one marking the most forward position of troops)
"They attacked the enemy's line."
noun: a single frequency (or very narrow band) of radiation in a spectrum
noun: the maximum credit that a customer is allowed
noun: space for one line of print (one column wide and 1/14 inch deep) used to measure advertising
noun: a length (straight or curved) without breadth or thickness; the trace of a moving point
noun: a slight depression or fold in the smoothness of a surface
"His face has many lines."
verb: reinforce with fabric
"Lined books are more enduring."
verb: fill plentifully
"Line one's pockets."
verb: cover the interior of
"Line the gloves."
verb: mark with lines
"Sorrow had lined his face."
verb: make a mark or lines on a surface
"Draw a line."
verb: be in line with; form a line along
"Trees line the riverbank."