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line

 
/lɑɪn/ n [C] (LONG MARK)

Definition

a long, thin mark on the surface of something: Draw a straight line. You shouldn’t drive across the double yellow lines. As I grow older, lines and wrinkles show on my face. geometry A line is a row of points that continues in both directions and is usually represented by a long thin mark.
(Definition of line n (LONG MARK) from the Cambridge Academic Content Dictionary © Cambridge University Press)

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