Dictionary definition · line
noun
- a formation of people or things one beside another"the line of soldiers advanced with their bayonets fixed"
- 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"
- 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"
- a single frequency (or very narrow band) of radiation in a spectrum
verb
- be in line with; form a line along"trees line the riverbank"
- cover the interior of"line the gloves"
- make a mark or lines on a surface"draw a line"
- mark with lines"sorrow had lined his face"
- fill plentifully"line one's pockets"
- reinforce with fabric"lined books are more enduring"
Source: Open English WordNet (CC BY 4.0).