Definition:
(noun) - A line is a basic element of art, referring to a continuous mark, made on a surface, by a moving point.
A line is long relative to its width. It can define a space, create an outline or pattern, imply movement or texture and allude to mass or volume. Absolutely essential in creating art, the line.
Pronunciation: line
Examples:
"Art, like morality, consists in drawing the line somewhere." - G.K. Chesterton