Related Clues:

• Lines of rotation
• x, y and sometimes z
• Ruthlessly reduces
• Many line graphs have two
• Plotter uses them when gaining old flame back
• There are two in a coordinate plane
• Weapons thrown at targets, in some social settings
• Lines that cross at
• Guitars, in slang
• Lines on graphs
• Guitars, informally
• Lines in a Cartesian plane