What does LINE mean?

noun

1. a formation of people or things one beside another“the line of soldiers advanced with their bayonets fixed”
2. a mark that is long relative to its width“He drew a line on the chart”
3. a formation of people or things one behind another“the line stretched clear around the corner”
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”
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. 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”