Noun
1. 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"2. a mark that is long relative to its width;
"He drew a line on the chart""The substance produced characteristic lines on the spectroscope"3. 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"4. a length (straight or curved) without breadth or thickness; the trace of a moving point
5. 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"6. a single frequency (or very narrow band) of radiation in a spectrum
7. a fortified position (especially one marking the most forward position of troops);
"they attacked the enemy's line"8. the methodical process of logical reasoning;
"I can't follow your line of reasoning"9. a conductor for transmitting electrical or optical signals or electric power
10. 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"11. a spatial location defined by a real or imaginary unidimensional extent
12. a slight depression in the smoothness of a surface;
"his face has many lines""ironing gets rid of most wrinkles"13. a pipe used to transport liquids or gases;
"a pipeline runs from the wells to the seaport"14. the road consisting of railroad track and roadbed
15. a telephone connection
16. acting in conformity;
"in line with""he got out of line""toe the line"17. the descendants of one individual;
"his entire lineage has been warriors"18. something (as a cord or rope) that is long and thin and flexible;
"a washing line"19. the principal activity in your life that you do to earn money;
"he's not in my line of business"20. in games or sports; a mark indicating positions or bounds of the playing area
21. (often plural) a means of communication or access;
"it must go through official channels""lines of communication were set up between the two firms"22. a particular kind of product or merchandise;
"a nice line of shoes"23. a commercial organization serving as a common carrier
24. space for one line of print (one column wide and 1/14 inch deep) used to measure advertising
25. the maximum credit that a customer is allowed
26. a succession of notes forming a distinctive sequence;
"she was humming an air from Beethoven"27. a short personal letter;
"drop me a line when you get there"28. a conceptual separation or demarcation;
"there is a narrow line between sanity and insanity"29. mechanical system in a factory whereby an article is conveyed through sites at which successive operations are performed on it