Related Clues:
- 7,918 miles, for Earth
- Line between two poles
- Line around which something rotates
- Time read out from one side to the other
- Center of a revolution
- Line across a circle
- X or Y line
- The Earth turns on it
- Circle Line trips are timed
- X or Y, in math
- Line in math class
- Coalition produces central line
- Political alliance used by plotter
- WW2 Nazi alliance
- Longest line in circle