Related Clues:

• Something to turn on
• Bisecting line
• Highest rank in the USMC
• Mil. leader
• ___-Y
• Petraeus, for ex.
• Cartesian plane divider
• Geometry term
• ___-Y (today's twentysomething crowd)
• ''Evil'' Bush grouping
• "The ___ of Evil"
• Pivot line
• Heavy graph line
• __-Xer
• Xer opener