Line

1. In communications, a line refers to a wire that connects two devices to each other.
2. Term used to describe a connector between two points. 
3. When referring to text, a line refers to a horizontal line of text. This text for example, is on a line of text.

Also see: EOL, Line adapter, Line analyzer, Line caps, Line conditioner, Line conditioning, Line driver, Line frequency, Line level, Line printer, Line regulator, Line spacing, Line speed, Newline, Polyline