Related Clues:

• x or y, e.g.
• x, y or z
• Stem
• Allies' foe in W.W. II
• Pivotal point
• The second cervical vertebra
• Coordinate system line
• Main line?
• Alliance
• See 34-Down
• On what the earth turns
• Allies' adversary
• Pole position?
• Line on a graph
• WWII power