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Apr 26, 2024 · 1. countable noun. A line is a long thin mark which is drawn or painted on a surface. Draw a line down that page's center. ...a dotted line. Synonyms: stroke, mark, rule, score More Synonyms of line. 2. countable noun. The lines on someone's skin, especially on their face, are long thin marks that appear there as they grow older.
1. [count] a : a long narrow mark on a surface. I drew a straight line down the page to separate the two lists. a curved line. Cut the paper along the dotted line. a horizontal/vertical/diagonal line. b : a mark on the ground that shows the edge of the playing area in a sport. a tennis serve that was over the line.
Lines are spaces of dimension one, which may be embedded in spaces of dimension two, three, or higher. The word line may also refer, in everyday life, to a line segment, which is a part of a line delimited by two points (its endpoints ).
